One Rat Has Earned 50 Food Pellets During a Session

Multiple Choice

One rat has earned 50 food pellets during a session of conditioning on a fixed reinforcement schedule,and a second rat has earned 50 food pellets during a session of conditioning on a variable schedule of reinforcement.What should you predict about the behaviour of the second rat,on the variable schedule

A)  steadier response rates but lower resistance to extinction 
B)  more breaks in responding and lower resistance to extinction 
C)  more breaks in responding but greater resistance to extinction 
D)  steadier response rates and greater resistance to extinction