Muscular strength
in case you didn't know the definition of muscular strength, you could use process of elimination. it's not muscular endurance because endurance is testing how long you can do something over a period of time, and the question is asking about all at once. it's not flexibility or body composition because neither are testing how much force your body can exert. that leaves muscular strength.
The answer that would best complete the given statement above would be the KIDNEYS. Yes, you are right. <span>The main process of excretion takes place in the kidneys. The kidneys filters the blood and this is the one responsible for excreting the waste products in the body in a form of urine. Hope this helps.</span>
<span>Most salsa has a good source of vitamin C , A, E, K, B6, magnesium, phosphorus and dietary fiber. So the answer should be A since most of the salsa have Vitamin C and Fiber.</span>
