In the Odyssey, why is Telemachus troubled when he is first visited by Athena, who is disguised as "one who would be a captain among soldiers"?

AHis mother, Penelope, has remarried and forgotten his father, who has been gone for many years.

BHe wants to go in search of his father, who has been gone for many years, but he has been commanded by Zeus to remain at home.

CHis father has been gone for twenty years, and many men are now feasting in his father's house and trying to woo his mother.

DHe briefly believes that the disguised Athena is actually his father, who seems unable to remember him.