All computer programs, no matter how simple or how complex, are written using one or more of three basic structures: sequence, selection, and repetition.

The factorial of n is equal to ______.

a) n – 1 b) n – factorial (n–1) c) factorial (n–1) d) n factorial (n–1)

Control information can be placed __________ a message.

a) in front of b) at the back of c) anywhere in d) Both a and b.