Smith Groceries is examining two options: Install four self-service registers that will increase the expenses by $1,000 and the revenue by $3,000. Alternatively, Smith Groceries can install two additional full-service registers that will generate additional revenue of $4,000. The additional costs for this option work out to $1,500. What is the value and the opportunity cost of installing two full-service registers? Value Opportunity cost A $ 4,000 $1,500 B $ 2,500 $ 2,000 C $ 2,000 $ 2,500 D $ 4,000 $ 3,000 E $ 4,000 $1,000 O a. A O b. B O c.C O d. D O e. E