Explanation:

Let’s break it down:

- Seven people: A, B, C, D, E, F, G, sitting in a straight line facing north.

- "Only two people sit to the left of C" ? So, C is 3rd from the left.

_Positions: 1 2 3 4 5 6 7_

_C at 3rd:_ ( _ _ C _ _ _ _ )

- "Only two people sit between A and B. B sits to the left of A."

- So, the order is B _ _ A or B _ _ _ A, but with only two between, so B _ _ A.

- "E is right next to A on the right." That means (A, E) are side by side, A left, E right.

- "Only one person sits to the right of D." D is 6th (from the left): ( _ _ C _ D _ _ )

- "F is not an immediate neighbour of B."

- Now, fill in:

- We try C = 3, so _ _ C _ _ _ _

- D must be at 6 ("Only one person to right of D"): _ _ C _ D _ _

- Only possible configuration for E next to A is: (A, E) as pairs.

- A and B: B _ _ A (with B left of A), options for their pairs in open spots.

- It fills in as:

1 2 3 4 5 6 7

B G C F A E D

- F is not a neighbor of B; A and E are placed, C is at 3rd; B is at the very left.

So, the person in the extreme left position is B.

- Option 1: B

- Option 2: D

- Option 3: E

- Option 4: F