The muscle which is highlighted is flexor digitorum longus and is therefore denoted as option A.
This refers to a deep posterior muscle which is present in the lower leg and is responsible for the different movement of the great toe.
It is also involved in plantar flexion and foot inversion and also helps to maintain a medial longitudinal arch thereby making it the most appropriate choice.
Read more about Flexor digitorum longus here https://brainly.com/question/6170469
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