If abc represents a positive three-digit number, where a, b and c are one-digit integers, which of the following CAN be true?
Options:
A) a + b + c = 9
B) a – b - c = 9
C) b – c - a = 9
D) Both A and C
E) Both A and B
The (hundreds place digit, a) cannot be zero, but (tens and ones place digits; b and c) can be zero.   A is NOT possible   B is possible   C is possible   D is possible   Both A and B is possible   Answer: Both A and B
<result>E</result>
If abc represents a positive three-digit number, where a, b and c are one-digit integers, which of the following CAN be true?