If a, b, and c are 3-digit positive integers, where a=b+c, is the hundreds' digit of a equal to the hundreds' digit of b plus the hundreds' digit of c?
(1) The tens' digit of a is equal to the tens digit of b plus the tens' digit of c.
(2) The units' digit of a is equal to the units' digit of b plus the units' digit of c.
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(1) The tens' digit of a is equal to the tens digit of b plus the tens' digit of c.
(2) The units' digit of a is equal to the units' digit of b plus the units' digit of c.
[Reveal] Spoiler:
I am not okay with the OA provided. I think its C.