How many multiples of 3 are there between 15 and 246 ?	Choose the correct choice from the following choices.
A) 128
B) 94
C) 89
D) 76
E) 60

Rationale: "it should be mentioned whether 15 and 246 are inclusive . if 15 and 246 are inclusive , then the answer is ( 246 - 15 ) / 3 + 1 = 78 . if 15 and 246 are not inclusive , then the answer is ( 243 - 18 ) / 3 + 1 = 76 . since oa is d , then we have not inclusive case ."
Answer: D