Correct option is C
The correct indirect speech is (c)
My brother asked me if I had read the newspaper that day.
Definition:
Direct Speech: Quoting someone's exact words.
Indirect Speech: Reporting what someone said without quoting exactly.
Rules for converting direct to indirect speech (interrogative type):
• Change of pronouns according to the subject-object relationship.
• "Said to" changes to "asked" for questions.
• Present perfect tense (have/has + V3) changes to past perfect (had + V3).
• "Today" changes to "that day".
Example:
Direct: He said to me, "Have you finished your homework today?"
Indirect: He asked me if I had finished my homework that day.