Use reasoning to lead to the answer of the following question:
The baby heard his mom talk for months, what did he do as a result?
Options:
- learn to speak
- talk nonsense
- talk rubbish
- boy or girl
- begin to talk
 Reasoning process:
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Babies generally learn most things from their parents. Begin to talk is one of the things that babies learn from parents. Therefore, the final answer is begin to talk.
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