Read the excerpt from "The Secret Adversary" by Agatha Christie:

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It was 2 p.m. on the afternoon of May 7, 1915. The Lusitania had been struck by two torpedoes in succession and was sinking rapidly, while the boats were being launched with all possible speed. The women and children were being lined up awaiting their turn. One girl stood alone, slightly apart from the rest. She was quite young, not more than eighteen. She did not seem afraid, and her grave, steadfast eyes looked straight ahead.

"I beg your pardon." A man's voice beside her made her start and turn. She had noticed the speaker more than once amongst the first-class passengers. There had been a hint of mystery about him which had appealed to her imagination. He spoke to no one. If anyone spoke to him, he was quick to rebuff the overture. She noticed now that he was greatly agitated.

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Select the correct answer from each drop-down menu.

The flashback in this passage begins with the sentence:

A. "The boats were being launched with all possible speed."
B. "She noticed now that he was greatly agitated."
C. "She had noticed the speaker more than once amongst the first-class passengers."