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

Which of the following statements describes a Type II error in hypothesis testing? Select one: a. A scientist, trying to prove 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.b. 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.c. A court declares a defendant guilty when he is actually not guilty.d. Through hypothesis testing, we find the alternative hypothesis true when it is actually false.