The Atomic Planes in a Graphite Crystal Are Separated by 335

Multiple Choice

The atomic planes in a graphite crystal are separated by 335 pm. At what angle would you find the first-order (n = 1) diffraction of 0.154 nm X-rays from a graphite crystal

A) 0.232 ^$\circ$
B) 2.63 ^$\circ$
C) 13.3 ^$\circ$
D) 27.4 ^$\circ$
E) 66.8 ^$\circ$