Correct option is A
The correct option is (a) across.
Explanation:
The sentence describes the act of swimming from one side of a river to the other — i.e., traversing the width of the river. The preposition across is used to indicate movement from one side to the other of something wide, such as a river, road, or field.
Correct answer – across:
Across means from one side to the other of a surface or an expanse.
(Hindi meaning: आर-पार / पार करके)
Example: She swam across the English Channel.
Explanation of Other Options:
- (b) Over – Typically used for movement above something or more than a quantity; not standard for swimming through water.
- (c) From – Indicates origin or starting point; does not describe the act of traversing a river.
- (d) Into – Indicates entering something; e.g., jumping into a river. Does not convey crossing the river.
So the correct answer is (a)