Counter Examples Pleas Help With this now

Question

which sentence is like be a good counter example to this statement ?

A line can exist in only one plane.

A. a line intersects one plane and then another

B. A line is parallel to one plane at a time

C. A line is coplanar exists in more than one plane

D. A line is the intersection of two planes

Please help me with this

Answer 1

D. A line that is the intersection of two planes lies in both planes at the same time.