I. B is a driver: This does not follow, as being Tall does not imply B is a driver.
II. B may violate a traffic light: This follows because some Tall persons violate traffic lights.
III. B will definitely violate traffic light: This does not follow as not all Tall persons violate traffic lights.
IV. If B is a driver, he will get fined: This does not necessarily follow because B’s violation is not certain.
V. B will definitely get fined: This does not follow as B’s violation is not certain.
Thus, the correct answer is Option (B).