Question

q: two circles are concentric if:
a. they overlap each other a little
b. they are the same size
c. they share the same central point
d. im not sure

Explanation:

Concentric circles are defined as circles that share the same center point. Option a describes overlapping circles which is not the definition of concentric. Option b refers to congruent circles (same size) not concentric. Option d is just a non - answer.

Answer:

C. They share the same central point