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If A is an integer, which of the following Cannot be inferred from the statement above?

1. A A necessary condition for A to be a multiple of 10 is that A is a multiple of 5
2. B If A is a multiple of 10 implies that A is a multiple of 5
3. C If A is multiple of 5, then A is a multiple of 10
4. D If A is not a multiple of 5, then A is not a multiple of 10