Assume that the light is to come on after a total count of 120. As a result, a) the preset counter C5:0 must be changed to 120. b) the value in source B of the GEQ instruction must be changed to 120....

Assume that the light is to come on after a total count of 120. As a result, a) the preset counter C5:0 must be changed to 120. b) the value in source B of the GEQ instruction must be changed to 120. c) the value in source B of the ADD instruction must be changed to 120. d) the value in word N7:1 must be changed to 120.