Service Composition a Is Comprised of 4 Services

Service Composition A is comprised of 4 services. Service Composition B is comprised of 6 services. Because both service compositions are comprised of services from the same service inventory, the service inventory will have a total of how many services?

A) 10
B) 24
C) Based on the information provided, it's impossible to know how many services reside in the service inventory because we don't know how many other service compositions exist.
D) Based on the information provided, it's impossible to know how many services reside in the service inventory because the quantity of services within a service inventory is not determined by the quantity of services in service compositions.