Answer: each service is interdependent and interrelated.
Step-by-step explanation:
An interdependent and interrelated service means the service cannot be separated, one cannot be said to have been concluded without concluding the other, invariably they will be accounted for as a single performance obligation.
The product cannot be distinct for a distinct product means the performance can be separated and it must be determinable for this an obligatory attribute of a contract.
A distinct performance obligation means it's not a multiple performance obligation.