How many positive integers between 1 and 300 are there such that they are multiples of 9?  Pick.
A) 31
B) 33
C) 35
D) 36
E) 23

Rationale: "multiples of 9 = 9 , 18,27 , - - - - - 297 number of multiples of 15 = > 9 * 33 = 297 answer is b"
Answer: B