Read the following context and choose the best option to answer the question.
Context: He kept pace with me , for a few dozen feet and he set off my warning radar . About half way to my car , he spoke up , like we 'd been in the middle of a conversation already , when in fact we had not exchanged any words other than my mumbled " thanks " as he held the door for me on my exit from the gym . " Oh by the way , " he started out , " thanks for letting me shower next to you .
Question: Why did the man hold the door for the narrator ?
Options: 
A. He did n't see the narrator standing there .
B. He wanted to ingratiate himself to the narrator .
C. He is naturally chivalrous .
D. None of the above choices .


B