Which of the Following Is True of a Gamma Test

Which of the following is true of a gamma test?

A) It works best for firms which want to leapfrog competitors.
B) To pass this test, the new item must solve the customer problems completely.
C) The test happens in a series of quick steps spanning over a period of one week.
D) Firms which need to save time, like car makers, typically go for gamma testing.