Explanation:

- S is at one end.

- There are three seats between S and T.

- L is exactly between S and V, and L is left of T.

- V is left of T.

- X is the only immediate neighbor of Q.

- More than one person sits between J and O, and O is not near T.

Here's the possible seating arrangement:

- S _ _ _ T (as S is at the extreme)

- L, being between S and V, places V three seats to the right of S.

- X, being the only neighbor of Q, gives: Q X.

- J and O are separate with more than one person between them.

Final arrangement:

S, L, V, J, O, Q, X, T

- Four persons are between L and O: L, V, J, Q.

Option:3-Four persons sit between L and O.

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