The two muscles that insert on the fifth phalanx or on the fifth metatarsal are the the two muscles that insert on the fifth phalanx or on the fifth metatarsal are the extensor digitorum longus and fibularis tertius fibularis longus and extensor hallucis longus extensor digitorum longus and fibularis longus fibularis tertius and extensor hallucis longus

The correct answer is the extensor digitorum longus and fibularis tertius.
The pretibial muscles include the anterior tibialis, extensor digitorum longus, extensor hallucis longus, and peroneus tertius. As a group they are active during the swing phase and the heel-strike to foot-flat phase of gait. Fibularis is often considered as part of the extensor digitorum longus muscle. 

C) reflection (i also looked up the other choices just to make sure)