Hi could someone help me with this please. It is not B

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Question 3 1 pts In 2017 a company purchased office supplies for $1,000 in cash and recorded these as an expense. At the end of 2017, it was determined that office supplies with a cost of $150 had not yet been used. Which of the following would be the adjusting entry required at the end of 2017? O DR Office supplies (A) $150, DR Office expense $850, CR Cash $1,000 DR Office expense $850, CR Office supplies (A) $850 DR Office supplies (A) $150, CR Office expense $150 DR Office supplies (A) $850, CR Office expense $850