The passage indicates that Jacob's primary response to the events described in the last paragraph is: (copied
here) is:
He had not accounted for Mount St. Mary's size relative to his high school and the difficulty of
"accidentally" running into someone in the halls. Throughout the first semester, Erin might as well have been
a ghost to Jacob, who tried his very best to make her acquaintance, but to no avail. Many years later, already
married to Martha, a seamstress from Gettysburg, Jacob would daydream about the single time he and Erin
had something resembling a date. With a resigned sigh, he remembered his hands trembling, even while
jammed into the pockets of his pressed Ogilvy's slacks; and the curious nature of her fragrance that seemed
floral from a distance but minty up close; and the musical sound her shoes made on the cobblestone road
leading to the assembly hall; and the way she seemed to be fearlessly striding toward an unknown future
while he was just trying to acclimate to the present.

A: anger concerning the excessive size of Mount St. Mary's.
B: remorse that he and Erin were largely disconnected.
C: gratitude for ultimately meeting and marrying Martha.
D: contentment regarding the fact that he got to date Erin.