Which sentence from "story of an hour" reveals mrs. mallard's emerging joy?
a. "she was young, with a fair, calm face, whose lines bespoke repression and even a certain strength."
b. "there would be no one to live for her during those coming years; she would live for herself."
c. "spring days, and summer days, and all sorts of days that would be her own."
d. "she arose at length and opened the door to her sister's importunities."