John and David work at a hospital with 8 other workers. For an internal review, 2 of the 8 workers will be randomly chosen to be interviewed. What is the probability that John and David will both be chosen? Choose the correct choice from the following options.
A) 1 / 30  B) 1 / 25  C) 1 / 20  D) 1 / 28  E) 1 / 30

Rationale: probability that john and david will both be chosen out of 8 workers = ( 2 / 8 ) * ( 1 / 7 ) = 1 / 28 answer d
Answer: D