Subject: mathqa
Question: a basket contains 10 apples , of which 1 is spoiled and the rest are good . if we select 2 apples from the basket simultaneously and at random , what is the probability that the 2 apples selected will include the spoiled apple ?
Option: 
A: 2 / 9
B: 2 / 7
C: 3 / 8
D: 1 / 5
Answer: D