There are________ products to be sold in the factory store. Which is not correct in the following?

There are________ products to be sold in the factory store. Which is not correct in the following?

There are________ products to be sold in the factory store. Which is not correct in the following?

1. A.
   a large number of
2. B.
   quantities of
3. C.
   a large amount of
4. D.
   a great many

There are________ products to be sold in the factory store. Which is not correct in the following?

A. a large number of  B. quantities of  C. a large amount of    D. a great many