A Receptor Array in the Limulus Is Connected by the Lateral

Multiple Choice

 A receptor array in the Limulus is connected by the lateral plexus. Receptor "A" is located 5 receptors to the left of Receptor "B." What stimulation will result in the greatest firing rate recorded from "A"

A) stimulate A with 10 units of illumination
B) stimulate A with 10 units of illumination and stimulate B with 10 units
C) stimulate A with 10 units of illumination and stimulate B with 20 units
D) stimulate A with 5 units of illumination and stimulate B with 20 units