کدام جمله عبارت «throw someone under the bus» را در دقیق‌ترین و طبیعی‌ترین کاربرد اصطلاحی آن به کار برده است؟

Which sentence uses “throw someone under the bus” in its most precise and idiomatic sense?

A) When the project failed, Sarah threw herself under the bus by admitting that she had made a mistake.

B) The CEO threw the marketing director under the bus, blaming her publicly for a decision that he himself had approved.

C) The journalist threw the politician under the bus by asking him a difficult question during the interview.

D) The manager threw the new employee under the bus by assigning him an unusually difficult task.