Select the correct indirect form of the given sentence.

Sam said, "Pa, I am a big boy now and don't need to drink milk."

Sam told his father that he was a big boy then and didn't need to drink milk.

The correct indirect form of the given sentence is:

Sam told his father that he is a big boy now and doesn't need to drink milk.

The other options are incorrect:

• Sam told his father that he was a big boy then and didn't need to drink milk. This is incorrect because the reported speech is in the past tense, but the speaker is talking about something that is happening now.
• Sam told his father that I would be a big boy now and won't need to drink milk. This is incorrect because the speaker is using the pronoun "I", which is not appropriate in this context.
• Sam told his father that he is a big boy now and don't need to drink milk. This is incorrect because the speaker has made a mistake in grammar. The correct contraction is "doesn't".