MHT CET Physics question

At the poles, a stretched wire of a given length vibrates in unison with a tuning fork. At the equator, for same setting to produce resonance with same fork, the vibrating length of wire [MHT-CET 2021]

• (A)Should be decreasedCorrect
• (B)Should be increased
• (C)Should be 3 times the original length
• (D)Should be same