<span>The answer would be: A) First trimester
</span>Genetic malformation should happen when the baby is forming its organs. Most of the organ is formed at the 3rd weeks of pregnancy which is part of the first trimester. If there is no malformation at this stage, it is less likely that any will develop at the later stage since it involve more growing and developing the current organ.
Tibialis anterior.
Explanation:
Tibialis anterior is the muscle of lower limb that originates from the upper two-third of lateral surface of tibia and attaches the heel (calcaneous ) via heel cord and plantar.
When the knee is extended, this muscle results in flexing of the foot .
This injury also functions in keeping the balance of the body when we are standing or even when we are walking.