**Core Concept**
The question is testing knowledge of the anatomy of the foot, specifically the muscles attached to the medial cuneiform bone. The medial cuneiform bone is one of the three cuneiform bones in the midfoot, and it plays a crucial role in the movement of the foot.

**Why the Correct Answer is Right**
The muscles attached to the medial cuneiform bone are the tibialis anterior and the extensor digitorum longus. These muscles are responsible for dorsiflexion and inversion of the foot. The tendons of these muscles are attached symmetrically to the medial cuneiform bone, allowing for balanced movement of the foot. This attachment is crucial for maintaining proper foot alignment and preventing conditions such as flatfoot or overpronation.

**Why Each Wrong Option is Incorrect**
**Option A:** This is not a muscle pair attached to the medial cuneiform bone.
**Option B:** This is not a muscle pair attached to the medial cuneiform bone.
**Option C:** This is not a muscle pair attached to the medial cuneiform bone.

**Clinical Pearl / High-Yield Fact**
It's essential to remember the muscle attachments to the bones in the foot, as this knowledge is crucial for diagnosing and treating conditions such as foot pain, flatfoot, or overpronation. Understanding the anatomy of the foot can also help prevent injuries and improve overall foot function.

**Correct Answer: C. Peroneus longus and peroneus brevis.**