Moore General Store purchased office supplies on account during the month of March for $5,000. Payment for the supplies will be made in April. On March 1, the balance in the supplies account was $350. On March 31, supplies on hand amounted to $310. What was the amount of supplies used during March? Select one: a. $40 x b. $310 C. $4,690 d. $5,040 e. $5,350