Answer:
Option D is correct.
Step-by-step explanation:
To measure and compare the muscular endurance of two persons with completely different physical features, the best method is the Fixed percentage method.
With this method, first, you determine the 1 RM (one repetition max) or the maximum weight this person can lift in a full repetition. Then you use 70% of that weight to calculate the muscular endurance.
If someone's RM is 200 lb, then you will use 140 lb (70% of 1 RM) to conduct the test.
This method takes into account the person's specific capabilities, as the 70% of a 140 lb person will be completely different from the one of a 210 lb person.