A fisherman goes to a water body nearby to spear a fish. Which of the following should he consider ?

Correct option is B

The correct answer is he should hit below the apparent position of fish.
Due to refraction, the apparent position of an object in water is higher than its actual position. This optical phenomenon is due to the light bending as it moves from water to air, making the fish appear at a location where it isn't. Therefore, a fisherman should aim below the apparent position of the fish to account for the refraction effect. If he targets exactly at the apparent position, he will likely miss because the fish is actually lower than it appears. Hitting above the apparent position or at right angles would not be effective strategies for this reason.