Describe the Intersection of the Graphs of Y = X

Multiple Choice

Describe the intersection of the graphs of y = x and y = 5 in 3-space.

A) line through the point (5, 5, 0) and perpendicular to the xy-plane
B) line through the points (5, 5, 5) and (0, 0, 0)
C) line through the point (0, 5, 0) and perpendicular to the xy-plane
D) line through the points (5, 5, 0) and (0, 0, 0)
E) line through the points (0, 0, 0) and (5, 5, 0)