Which of these is a rule you should always follow when excavating at a site where utility installations are present?
O A. Never hand dig inside a clearance zone
O B. If necessary, guess the location of utility installations
○ C. Do not mechanically dig within a clearance zone
OD. If you have concerns, continue working cautiously
O A. Never hand dig inside a clearance zone
O B. If necessary, guess the location of utility installations
○ C. Do not mechanically dig within a clearance zone
OD. If you have concerns, continue working cautiously