Find All Values of θ, If θ Is in the Interval

Find all values of θ, if θ is in the interval [0, 360°) and has the given function value.
- $\sec \theta$ is undefined

A) $90 ^ { \circ }$
B) $90 ^ { \circ }$ and $270 ^ { \circ }$
C) $0 ^ { \circ }$
D) $0 ^ { \circ }$ and $180 ^ { \circ }$