Question

Name the intersection of planes ABE and BEC.

plane BED
plane ABC
line BE
line AE

Answer 1

It's line BE (why are you asking?)

Answer 2

Answer: The intersection of planes ABE and BEC must be line BE.

Explanation:

We know that, when two planes intersect then their intersection is a line.

i.e. their intersection must be a line.

From the given picture it can be seen that the planes ABE and BEC are intersecting at line BE.

Therefore , the intersection of planes ABE and BEC must be line BE.