Question

if your drill press has a keyed chuck
select one:
a. tighten the chuck in all three holes
b. all of these
c. make sure to remove the chuck key from the chuck before turning on drill press
d. only use the chuck key designed for that chuck

Explanation:

When using a drill - press with a keyed chuck, it is important to tighten the chuck properly (which may involve using all holes), use the correct chuck key, and always remove the chuck key before turning on the drill - press to avoid accidents.

Answer:

B. All of these