Why Was the Study of Cognition Generally Dismissed or Ignored

Multiple Choice

Why was the study of cognition generally dismissed or ignored prior to the 1950s?

A) Because the technology needed to study cognition had not yet been invented prior to the 1950s.
B) Because there was no real literature that discussed how we think, so there was nothing upon which to base the study of cognition.
C) Because cognition was seen as existing under the "umbrella" of religion and philosophy, two fields that were at great odds with the study of psychology.
D) Because psychologists chose instead to focus on visible behaviors, and many of the topics of cognitive psychology are not readily observable.