Outsourced CAs Are Different from Public CAs in What Way

Multiple Choice

Outsourced CAs are different from Public CAs in what way?

A) Outsourced services can be used by hundreds of companies.
B) Outsourced services provide dedicated services and equipment to individual companies.
C) Outsourced services do not maintain specific servers and infrastructures for individual companies.
D) Outsourced services are different in name only.They are essentially the same thing.