Choose the most appropriate option to change the narration (direct / indirect) of the given sentence.

Nidhi said to Meena, "You can pull the box to the main door.”

a) Nidhi told Meena that she can be pulling the box to the main door.
b) Nidhi told Meena that you can pull the box to the main door.
c) Nidhi told Meena that she could pull the box to the main door.
d) Nidhi told Meena that she must pull the box to the main door.