As Poirot observes Mary Debenham and Colonel Arbuthnot, three things about their behavior seem curious to Poirot and cause him to think he is watching an "odd little comedy." What are they? Select 3 that apply.

A, Colonel Arbuthnot sends Mary Debenham flowers which she throws back in his face.

B, Mary Debenham remarks that she wants Arbuthnot to wait until "it's all over."

C, Colonel Arbuthnot is annoyed by Mary Debenham being a governess. He seems to know her better than he should if they have just met.

D, Mary Debenham is not enjoying her travels and wishes she could.

E, Mary Debenham gets tears in her eyes when she first sees Colonel Arbuthnot.