If the Null Hypothesis Had Influenced How Psychiatrists Thought About

If the null hypothesis had influenced how psychiatrists thought about inducing fevers and carrying out lobotomies in the 1920s and 1930s, they would have

A) moved even more quickly to accept these new treatments.
B) been even more likely to emphasize underlying biological causes of disorder.
C) dismissed the need for more research.
D) been skeptical of these treatments unless more scientific proofs of their value were established.