P takes 12 minutes to complete one round of a circular track and R takes 18 minutes to complete the same round. If they start at the same time from the same point in the same direction at 12:30 p.m., then at which of the following times will they meet at the starting point on the same day?

A

2:08 p.m.

B

2:18 p.m.

C

2:38 p.m.

D

2:28 p.m.