CoStar Would Like to Test If the Vacancy Rate for "Warehouse

CoStar would like to test if the vacancy rate for "warehouse" stores is more than 8%. A Type I error would occur if CoStar concludes that the vacancy rate was __________.

A) 8% or less when, in reality, the proportion was more than 8%
B) not equal to 8% when, in reality, the proportion was equal to 8%
C) equal to 8% when, in reality, the proportion was 8% or less
D) more than 8% when, in reality, the proportion was 8% or less