Answer:
C
Explanation:
A. Substantial number of accounts does not specify if these are large or small amounts, and large amounts would need to have a positive confirmation.
B. If these risks are high, there needs to be postivie confirmation from the clients of the company since there is high risk involved.
D. If the clients are not going to give them consideration, and the point of a negative confirmation is that it is a valid receivable, there is no way of knowing if they didn't reply if its correct or if they just didn't reply.