Which sentence is punctuated correctly?
a.
"their dancing," she added, "is a combination of modern dance and ballet."
b.
lynette asked "did you realize that the alvin ailey american dance theater is forty-five years old"?
c.
"it is" lynette explained "a famous dance troupe based in new york city."
d.
"no." replied carly "i'm sorry to say that i don't know much about that group."