The exercises that allow you to specify the muscles to be  trained is: B. Anaerobic.
Anaerobic respiration refers to a chemical and biological process that involves the use of electron acceptor rather than oxygen to make energy (adenosine triphosphate) from carbohydrates (sugars).
Similarly, an anaerobic exercise can occurs or takes place in the absence of oxygen.
On a related note, an anaerobic exercise is used to specify the muscles to be  trained through the actions of electron acceptor when oxygen is lacking in the body.
In conclusion, strong muscle and stamina are mainly developed through an anaerobic exercise.
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