All of the Following Have Been Suggested as Reasons for Why

Multiple Choice

All of the following have been suggested as reasons for why some teenagers appear not to use formal logic EXCEPT the fact that

A) cultural influences determine the need for formal logic.
B) expertise determines the ability to use it.
C) most adolescents are below average in intelligence.
D) everyday experiences do not require formal logic.
E) parts of the brain may not be sufficiently developed.