Safe lift training should include:

a. all of the answers
b. explanation of potential hazards and how to prevent or correct them
c. how to avoid unnecessary physical stress and strain
d. how to lift safely
e. the proper use of equipment
f. what you can comfortably handle without undue strain

Explanation:

Most common injuries during weightlifting trainings are:

As you can see, a safety lift training that includes all the answers can prevent all this injuries, which are most of the time caused by lacking knowledge about people's weight-lift limits, the potential hazards, the right techniques, proper equipment use, even people don't if they can endure a whole training.