Molly is eating red and black jellybeans from a paper bag. She is not looking at the jellybeans as she eats them. She likes red jellybeans, but she does not like black jellybeans. The amount of jellybeans she has to take from the jar before she gets a red one is never the same. Which of the following statements is true?
A. Molly is on a fixed-interval schedule of reinforcement.
B. Molly is on a variable-interval schedule of reinforcement.
C. Molly is on a fixed-ratio schedule of reinforcement.
D. Molly is on a variable-ratio schedule of reinforcement.

What was the result of president taft's "dollar diplomacy

Quick using the information in the graph, one might speculate that a) w. w.i created increased job opportunities in the u. s. b) the election of president hoover in 1936 caused unemployment to decline. c) the return of soldiers following w. w.ii caused unemployment to increase in the u. s. d) the new deal programs of president roosevelt created employment opportunities in the u. s.

How is the city of savannah related to the union strategy of a full blockade of confederate ports? a) savannah was the last port needed to be secured in order to totally blockade the coast of georgia. b) savannah was the least significant city in georgia, and the union strategy centered on securing atlanta and capturing the tennessee river. c) savannah was the least significant city in georgia, and the union strategy centered on securing atlanta and capturing the chattahoochee river. d) savannah was the most significant port in georgia, and the union strategy centered on securing bases at savannah and the outlying islands to fully blockade georgia.