Answer:
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Hi There Friend!
Thank You for posting your question!
<u><em>Your answer is A. it stretches the quadriceps muscle further.</em></u>
<u><em>Based on your choices from the previous answer of Carrittop.</em></u>
Doing sitting quadriceps is way easier, Yet it does not bring as well of a result as the standing quadriceps. Standing quadriceps stretches the muscle(s) further more making it more preventing from any injuries.
I really hope this helps friend! Feel free to mark brainliest.
Visual impairment or hearing Impaired is most likely, if your using hand signals