7. technician a says that one reason to use several small valves instead of two larger valves is to increase the size of the

open port when the valves are open. technician b says that the area of two small valves added together is often smaller than

the area of one larger valve. who is right?

o a. technician a only

o b. neither technician a nor b

c. technician b only

o d. both technicians a and b