How Is a Service Area Different from a Simple Buffer

Multiple Choice

How is a service area different from a simple buffer?

A) It can only be created around lines, unlike a regular buffer which can be created around all three vector objects.
B) It is constrained by the edges of the network unlike a regular buffer.
C) It can only be constructed in a designated urban setting, unlike a regular buffer that can be created anywhere.
D) It cannot be created using a distance measurement, unlike a regular buffer.