C.
Ten sets of:
Back Squat
*Set 1 – 5 reps @ 60% of 1-RM
*Set 2 – 3 reps @ 75%
*Set 3 – 1 rep @ 85%
*Set 4 – 3 reps @ 80%
*Set 5 – 3 reps @ 85%
*Set 6 – 2 reps @ 90%
*Set 7 – 7 reps @ 75%
*Set 8 – 7 reps @ 75%
*Set 9 – 7 reps @ 75%
*Set 10 – 7 reps @ 75%
Rest exactly 2 minutes between sets.

Set a clock…this should not take more than 30 minutes.