A subtree is any connected structure below the root.

When using the police portable radio, you speak

a. in a normal voice horizontally across the face of the microphone. b. directly into the microphone of the transmitter. c. with the microphone of the transmitter facing away from the speaker. d. loudly into the microphone to ensure message is transmit-ted.

Which of the following is false?

a) Each variable being input in a scanf statement is generally pre-ceded by an &. b) Each variable being output in a printf statement is generally not preceded by an &. c) In a printf statement, the comma that separates the format con-trol string from the expressions to be printed is placed inside the format control string. d) Calculations can be performed inside printf statements.