In Service Mapping, when discovery is started, what is the execution strategy used to run Identification Sections?

In Service Mapping, when discovery is started, what is the execution strategy used to run Identification Sections?
A . Identification Sections are executed randomly until one is successful and if more than one section is successful an error will be displayed.
B . Identification Sections are executed randomly and the data gathered by the successful sections are merged.
C . Identification Sections are executed one by one in the order they are listed and the last section that is successful will be used.
D . Identification Sections are executed one by one in the order they are listed until the first successful match which concludes the Identification phase.

Answer: B