Two Slits Are Separated by 2

Multiple Choice

Two slits are separated by 2.00 × 10^-5 m. They are illuminated by light of wavelength 5.60 × 10^-7 m. If the distance from the slits to the screen is 6.00 m, what is the separation between the central bright fringe and the third dark fringe?

A) 0.421 m
B) 0.224 m
C) 0.168 m
D) 0.084 m
E) 0.070 m