13. Which is the best recommendation for performing high-quality chest compressions?
a. Lean on the chest to be able to compress deeply.
b. Compress at least 2 inches and 100 to 120 times per minute. Avoid leaning.
c. Avoid pressing too hard, it is likely that you will compress too deep.
d. Compress at least 2 inches and at least 100 times per minute.