Which of the following sets of results shows evidence of proactive interference with a three-trial recall task? (Note: Read the selections as percent correct for Trial 1: Trial 2: Trial 3.) Group of answer choicesa. 20% : 50 % : 70% correct b.80% : 40% : 30% correctc. 30 % : 30% : 30% correct d.70% : 40% : 60% correct

Bbbhkkk

Period is the time it takes for one “cycle” to complete. in the parent sine function, period is 2*pi since sin(0) = 0, sin(pi/2) = 1, sin(pi) = 0, sin(3pi/2) = -1, and sin(2pi) = 0. at that point, the sequence repeats itself. i’m not sure if your graph is similar to the sine function since you didn’t provide a picture, but you can find the period by looking at a graph.

Anyone can me with these answers