Correct Answer: Smita said, “The car mechanic came two days ago.”

Solution : The fourth option is correct.

Explanation:

Direct speech, also known as quoted speech or direct discourse, refers to the representation of someone's words or statements exactly as they were spoken.
Narration conversion:

• The reporting verb "said" will remain the same as no object has been mentioned after it
• The past perfect tense "had come" changes to the simple past tense "came".
• The word "before" changes to "ago".
• The original words of the speaker are enclosed in inverted commas.

Therefore, the direct form would be: Smita said, "The car mechanic came two days ago ."