Which of the following is an important safety precaution to observe when putting up an antenna tower?

Answer: C. Look for and stay clear of any overhead electrical wires

When putting up a tower, look for and stay clear of any overhead electrical wires. Contact with power lines can kill you instantly. Insulating the tower base does not prevent lightning strikes, and a wrist strap isn't needed.

Tip: Look up for power lines before you raise anything.