When Using 545-Nm Light,how Far Is the Adjustable Mirror of a Michelson

Multiple Choice

When using 545-nm light,how far is the adjustable mirror of a Michelson interferometer moved when 200 fringe shifts are counted?

A) 1.36 × 10^-6 m
B) 2.73 × 10^-5 m
C) 5.45 × 10-⁵ m
D) 1.36 × 10-⁴ m
E) ​2.7 × 10-⁴ m