Use the Following Information for Questions

Multiple Choice

Use the following information for questions
Chi Co.records purchases at net amounts.On May 5 Chi purchased merchandise on account,
$8,000, terms 2/10, n/30.Pye returned $500 of the May 5 purchase and received credit on account.At May 31 the balance had not been paid.
-By how much should the account payable be adjusted on May 31?

A) $0.
B) $170.
C) $160.
D) $150.