option C- Decussate,. Decussation is the crossing of the right and left corticospinal tracts.
Decussate things cross over each other to form an X. Decussate leaves are arranged along a stem in such a way that pairs of them overlap each other in botany. Decussate can be used as an adjective or a verb; in either case, it's a technical term commonly used by scientists The uncrossed anterior corticospinal tract refers to the few fibres, which vary in number. The lateral corticospinal tract is the primary corticospinal tract.
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