When Conducting a Hypothesis Test, Which of the Following Decisions

Multiple Choice

When conducting a hypothesis test, which of the following decisions represents an error?

A) Rejecting the null hypothesis when it is true.
B) Rejecting the null hypothesis when it is false.
C) Not rejecting the null hypothesis when it is true.
D) Rejecting the null hypothesis when it is false and not rejecting the null hypothesis when it is true.