Anaerobic exercise is a. high intensity b. short duration c. both a and b d. neither a or b

Hello,

The answer should be option A "high intensity".

Reason:

A anaerobic exercise is something that benefits the muscles of the body these actives include: body building, matron runs, or anything that would build your muscles. Its not option B because short duration means low endurance and these activity's need alot of endurance in order to complete them. Its also not options C, and D because of the reasons above. Therefore the answer is option A.

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Hope this helps!

~Nonportrit

True my friend : ) good luck