Explanation:

Alright, let's break this puzzle down step by step:

- We’ve got 6 people: E, R, K, S, A, and G.

- Birthdays fall on either 11th or 18th, and the months are March (31 days), May (31 days), and November (30 days).

- R's birthday is on an 18th.

- E's birthday isn’t last. E’s birthday is in a month with 30 days (that’s November).

- The number of people before K is the same as the number after R.

- Only two people have birthdays before G.

- No more than two people after S (so S is close to the end).

- R and A must be in different months.

Here's how it plays out:

1. Find out the order.

- Since E’s in November—the only 30-day month.

- Two people before G: So G is either third (with two before) or G is in the third slot.

- R's birthday is on the 18th and can't be last because E isn’t last (since E is in November, which must be the last or second-to-last month numerically).

- S has at most two after, which puts S at 4th, 5th, or 6th.

2. Balance around K & R.

- People before K = people after R. So K sits 1 earlier than R, or 1 after R; since six people, that must be K-1,R,K+4, or vice versa, balancing the left and right.

3. Plug in months and dates:

- For March, May, November each, there are two slots (11th & 18th), but they can’t share days.

- E must be in November.

- R is not in November (because E is already there).

- A isn’t in same month as R.

4. Process of elimination:

- Since two before G, G is third.

- E in Nov (either fifth or sixth; but can’t be sixth—“E isn’t last”), so E is fifth. So Nov 11 or Nov 18 (but must check).

- S has at most two after—it can be 4/5/6, but E is fifth, so S is fourth.

- R must be after K (to create symmetry, before K = after R).

5. Actual sequence:

A possible order is: X, X, G, S, E, X.

G is third, S fourth, E fifth.

6. Align K and R for symmetry:

- Let's fit K and R. For even symmetry, K-1 people before K, R with equal after. Possible only if R is in third, meaning G = R? G third, but each birthday is unique.

- Try making K=1st, G=3rd, E=5th, S=4th, R=6th, A=2nd.

Positions: 1 2 3 4 5 6

K A G S E R

Now, let's allocate dates and months:

- E: Nov (must be fifth), Nov 11 or 18; S fourth (maybe in May or March).

- R sixth: R must be 18th of either March or May.

- G in third slot—now, since only two before, that fits the clues.

Now, since the question is who has 18th March:

- Only 18th spots left to assign.

- R is not in March or November (E is in Nov, R and A not in same months).

- But G is third, S is fourth, E fifth, R sixth—mapping months/dates:

- K (1): 11 March

- A (2): 11 May

- G (3): 18 March

- S (4): 18 May

- E (5): 11 November

- R (6): 18 November

So, option 2: G has a birthday on 18th March.

Option 2: G is the correct answer.

Here’s the quick takeaway:

- G is the only person whose birthday lines up with March 18th.

- A’s birthday is not on 18th March based on the arrangement above.

- If you went with A, double-check the logic flow above for all slots; everything points to G.

Hope this clarifies it for you!