If Terry is doing 2 sets of 6 repetitions at 50 pounds of a bench press in order to improve her muscular strength in the chest area, how many sets would show an appropriate increase in the time variable for her muscular strength workout? a. 3 sets of 4 repetitions at 65 pounds
b. 3 sets of 15 repetitions at 35 pounds
c. 6 sets of 12 repetitions at 40 pounds
d. 6 sets of 8 repetitions at 70 pounds

Thank you to whoever responds!