Final answer:
Process analysis aims to improve the efficiency and effectiveness of processes, is relevant in service industries, and involves identifying inefficiencies. A case study's results are not generally applicable, and a cyclic process is one where the system returns to its original state at the end of the cycle.
Step-by-step explanation:
The correct statement about process analysis is c) It aims to improve the efficiency and effectiveness of processes. Process analysis is not only focused on the end result, but on the entire sequence of events or steps taken to perform a task or activity. It involves identifying inefficiencies and suggesting improvements to optimize productivity and reduce waste.
To answer the additional questions, the best description of the results of a case study is b) Its results are not generally applicable. Case studies provide in-depth analysis of a particular instance, but their findings are usually not broadly generalizable due to the unique context of each case.