If Light of Wavelength 690 Nm Is Used in a Double-Slit

Multiple Choice

If light of wavelength 690 nm is used in a double-slit experiment with slit separation 0.206 mm,what angle separates the two 4^th order maxima?

A) 0.768 $^{\circ}$
B) 3.07 $^{\circ}$
C) 0.307 $^{\circ}$
D) 1.54 $^{\circ}$
E) 0.154 $^{\circ}$