text: The<unk>  contains<unk>  neurons that innervate muscles of the first branchial arch, namely the muscles of mastication, the tensor tympani, tensor veli palatini, mylohyoid, and anterior belly of the digastric.
option_0: Trigeminal motor nucleus
option_1: Trigeminal nerve nuclei
option_2: Gracile nucleus
option_3: Tectospinal tract
option_4: Medial vestibular nucleus
option_5: Cuneate nucleus
option_6: Vestibular nuclei
option_7: Caudate nucleus