B is the correct answer according to my calculations.
Answer:

Explanation:
As we know that the speed of the wave in string is given as

now we will have
frequency of the wave is given as


now if the ant will feel weightlessness then we will have

so we will have



D. Power. The unit of power is watt.
Answer:
golf
Explanation:
it's less physical strength in more of you hitting the ball with whatever the stick is called