The condition known as "flat feet" is due to a lower-than-normal longitudinal arch in the foot. A problem with which of the following would most likely contribute to this condition?
A) a loose Achilles tendon
B) weak tarsometatarsal joints
C) weakness in the ligaments that attach the calcaneus to the distal ends of the metatarsals
D) weakness in the ligaments that attach the talus to the tibia
E) poor alignment of the phalanges with the metatarsals
Answer: C
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