
This happens whenever the terminal point of

lies in either the first or second quadrants.
Meanwhile,

since you already know sine is positive. Cosine is positive when the angle lies in the first or fourth quadrant.
Sine and cosine are both positive only when

is the first quadrant, which means this angle's terminal point lies in the first quadrant (A).
Answer:
They do not intersect, but are coplanar
Step-by-step explanation:
Parallel lines are coplanar (they lie in the same plane) and never intersect.