Two bar magnets A and B, and a non-magnetic bar C, all of same mass and dimensions, are dropped in an identical manner one by one through the center of a copper loop held horizontally (as shown in the figure). The times taken by the bars $\mathrm{A}, \mathrm{B}$, and C to reach the ground are $t_A, t_B$, and $t_C$, respectively. Which of the following relations is correct?

• A

  $t_A \gt t_B \gt t_C$
• Correct answer
  B

  $t_A=t_B \gt t_C$
• C

  $t_A=t_B \lt t_C$
• D

  $t_A \lt t_B \lt t_C$

Hence, the correct answer is option: 'B'.