What is the remainder when 9^1 + 9^2 + 9^3 +...+ 9^9 is divided by 3?	Pick one
A) 0
B) 3
C) 2
D) 5
E) none of the above

Rationale: "notice that in the brackets we have the sum of 8 odd multiples of 3 , which yields remainder of 0 upon division by 3 . answer : a"
Answer: A