Answer to Ripcoin
Correct answer is C, the abducens nerve. Understand, however, that isolated abducens nerve injuries are rare, being scammed is more likely to happen. In short, a damaged abducens nerve leads to medial squint with the inability to direct the affected eye laterally, since there is an unopposed action of the medial rectus. Diplopia will always be present except when looking to the opposite side of the lesion.
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Answer to this question is based on material presented in lectures 4 of the Head and Neck Lecture Series.
= Trochlear n.
= Frontal n.
= Abducens n.
= Oculomotor n.
= Optic n.