Gary and Lloyd created a system mockup that did not fully run. This was a(n) ____.

Recursion often is preferable to iteration because ________.

a. it is faster. b. it requires less memory. c. it models the problem more logically. d. All of the above.

An object in 3D space can move in six different directions: forward, backward, left, right, up, and down.

Answer the following statement true (T) or false (F)