Explanation:

Let's solve step by step:

- G goes on Friday.

- D goes on the second day (Tuesday).

- Three persons between D (Tuesday) and F ? F must be Saturday.

- One person between G (Friday) and C ? C can be Wednesday or Sunday.

- A goes before C.

- Number of persons after C = before G (G is Friday, before G: Mon, Tue, Wed, Thu = 4).

- So, after C = 4, C must be Sunday.

- Persons: Monday (?), Tuesday (D), Wednesday (?), Thursday (?), Friday (G), Saturday (F), Sunday (C).

- One person between G (Fri) and C (Sun) ? Saturday (F) is between them.

- A is before C ? Not Sunday. Remaining days: Mon, Wed, Thu.

- B not on Monday or Thursday.

- Leftover: Monday, Wednesday, Thursday.

- If E is Monday, A is Wednesday, B is Thursday, or A is Monday, E is Wednesday, B is Thursday, but B can't be Monday.

Placing all persons:

- Monday: E

- Tuesday: D

- Wednesday: A

- Thursday: B

- Friday: G

- Saturday: F

- Sunday: C

Now, persons between E (Monday) and B (Thursday) = Tuesday (D), Wednesday (A) ? Two persons.

Option:2, Two (Correct Answer)

Summary:

- B is Thursday, E is Monday.

- E and B have two persons between them: D (Tuesday) and A (Wednesday).

- Correct answer: Option 2 — Two persons