Sheila keeps interrupting Manohar when he is playing with his friends, but he __________ because she is his younger sister.

According to the sentence, Sheila constantly interrupts Manohar when he is playing with friends, but he puts up with this behaviour because she is his younger sister. The blank requires a phrasal verb meaning "tolerates" or "patiently accepts" someone's annoying actions.

"Puts up with her" (Option A) literally translates to "tolerate or endure someone's behaviour despite finding it unpleasant."Given their sibling relationship, Manohar's patient acceptance of his sister's interruptions is a perfect fit in this context.

Because "puts along with her" (Option B) is not a recognised English phrase, "puts her off" (Option C) would imply that he discourages or deters her—the exact opposite of what is meant—and "puts her on" (Option D) would imply he is deceiving or teasing her, none of these choices essentially fit here. The correct answer is therefore Option A.