Which of the following are NOT two of the best ways to StaySafe around electricity?

Which of the following are NOT two of the best ways to StaySafe around electricity?

A. Maintain a safe distance from overhead power lines, and Follow proper lockout/tagout procedures.
B. Use electrical safety devices and check extension cords once a year for any abrasions or cuts
C. Use ground-fault circuit interrupters, and inspect extensions cords and portable tools.