Which of the Following Statements Describes a Type II Error

Multiple Choice

Which of the following statements describes a Type II error in hypothesis testing?

A) A court declares a defendant guilty,when he is actually innocent.
B) A scientist,trying to support a theory about the number of different species of animals in a particular country,declares the null hypothesis to be "there are 715 different species" when there are actually more than 800.
C) A statistician determines,through hypothesis testing,that the mean number of televisions per household in a certain community is 1.4,when it is actually greater than 1.4.
D) Through hypothesis testing,we find the alternative hypothesis to be true when it is actually false.