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When a person is running in a 5k race and their body is using the oxygen-energy system to extract energy, from which source(s) can energy be produced?

a. fat

b. protein

c. glucose

d. both fat and glucose?

Respuesta :

Kasekryptoz

Answer:

D

Explanation:

fat is what you burn when working out and glucose is a sugar type materiel so its both of them ...................... i think✔

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