Garber Plumbers offers a 20% trade discount when providing $2,000 or more of plumbing services to its customers. In March 2021, Garber provided $4,000 of plumbing services to Red Oak Inc., and $1,500 of services to Cyril Inc. Each of these customers was granted credit terms of 2/10, net 30. If both customers paid for the plumbing services within the discount period, what was the net revenues amount for these two transactions? OA) $5,500 B) $4,606. OC) $4,312 D) $4,486