A Psychologist Develops a Behavioral Treatment to Decrease the Frequency

A psychologist develops a behavioral treatment to decrease the frequency of a child's temper tantrums.In order to make a causal interpretation about the effectiveness of the treatment using an ABAB design,the most problematic initial baseline period would show

A) a stable pattern of temper tantrums.
B) a greater number of temper tantrums in the baseline period compared to the treatment period.
C) an increasing trend in the number of temper tantrums.
D) a decreasing trend in the number of temper tantrums.