Question: Mike likes to ride his rollerblades in the skating rink and at his home on the cement patio in the backyard. He found that the ride was smooth in the skating rink, but rough on the cement patio. This means that the rollerblades move faster in the (A) skating rink or on the (B) cement patio Do not use A and B to answer the question but instead, choose between "skating rink" and "cement patio".
A:
skating rink