Which of the Following Best Explains Why Saccade Movements Are

Which of the following best explains why saccade movements are so rapid (>350 degrees/second) ?

A) the superior colliculus is mapped to specific retinoic inputs
B) retinoic inputs synapse directly on eye muscles
C) the circuitry between a retinoic input through the superior colliculus and ultimately synapsing on the eye muscles is short and directed
D) a and c
E) none of the above