In the process of converting a Moore machine to an equivalent Mealy machine, which of the following statements is true?

1. AThe number of states in the Mealy machine is always greater than that in the Moore machine.
2. BMealy machine can produce outputs one input symbol earlier than the equivalent Moore machine.
3. CThe Moore machine requires outputs to depend on both current state and input symbol.
4. DThe conversion is not possible unless the Moore machine is deterministic.