- A0
- B1
- C4
- D7
Step-by-Step Solution
Digit sum = 3 + blank + 6 = 9 + blank. For divisibility by 3, 9 + blank must be a multiple of 3, so blank must be a multiple of 3 (0, 3, 6, 9). Among the options, only 0 is a multiple of
Answer: A) 0
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