Question

while harrison and the ballerina dance, they...
a become competitive.
b fall in love with each other.
c appear to have no limitations.
d make others question the handicaps.

Explanation:

In the story context, when Harrison and the ballerina dance, they break free from the artificial handicaps imposed by society and seem to be in a state of uninhibited expression, appearing to have no limitations.

Answer:

C. appear to have no limitations