In acceptance sampling, when the random sample passes the buyer's incoming test (low number of defects found), the next action taken is to:

A) accept the entire lot of incoming materials.
B) do additional testing to reduce the risk of accepting a bad-quality lot.
C) place the lot on hold and wait for additional lots from this seller to be tested to assure consistent good quality.
D) 100% inspect the lot because some defects were found.

A