Which sentence is not punctuated correctly?
a.
"now, don't say, "i can't," because i know you can do it," dad coaxed.
b.
"are you sure she said, 'come by any time'? " amy asked.
c.
"ever since i was little, my family has called me 'penny' instead of penelope," she said.
d.
"my piano teacher," anna said, "gave me sheet music for 'over the rainbow,' sung by judy garland."