I would also say that the answer is C
Your answer is
One of the most effective methods that can be used by researchers to avoid sampling bias is simple random sampling, in which samples are chosen strictly by chance. This provides equal odds for every member of the population to be chosen as a participant in the study at hand.
These components include;
Cardiorespiratory Endurance: Ability of the circulatory and respiratory systems to supply oxygen during sustained physical activity.
Guidelines
3 - 5 days per week
20-60 minutes a day
intensity of 60%-90% of MHR
Muscular strength; the ability to perform activities that require high levels of muscular force.
2 -3 days per week
2-6 sets
≤ 6 repetitions
Intensity of 80 - 90 % of 1RM
Muscular endurance;
2 - 3 days per week
2 - 3 sets
≥ 12 repetitions
Intensity of 60% - 70% of 1RM
Flexibility
2- 3 days a week
≥ 4 repetitions per muscle group
15 - 60 seconds
Body composition Women men
Essential fat 10-13% 2-5 %
Athletes 14-20% 6-13 %
Fitness 21-24% 14-17 %
Average 25-31% 18-24%
Obese ≥ 32% ≥ 25%
West Nile lead to a decline in susceptible avian and human hosts, with a subsequent decline in the number of cases since 1997
<span>Of the 118 elements that have been discovered, 90 of them indisputably occur in nature. There is disagreement over whether four more or eight more occur naturally as a result of radioactive decay of other natural elements. The answer is, therefore, 94 or 98.</span>