This question doesn't make sense as it stands. However, I will try to guess your meaning. I think you are asking about software testing and the purpose of carrying out a check on integration of small elements. There is a need to check whether the actual results match the expected results and to ensure the software system is free of defects.
This involves execution of one or more software components to evaluate the element under review. The best of the options given is C. The individual modules must be checked to see which combine and how many do so simultaneously.
Integration testing is the testing of a group of modules of software. These individual software data is brought together to be tested. There is a process for the testing of the software modules. First, there is the unit testing which individual units are tested. Then comes the integration testing and finally the validation testing. Validation testing is the final check so that the software requirements are met.
Integration strategies help to train employees. It is a cross-training management technique. This will save time and money for the company. Since integration testing combines different individual software modules, the main purpose of the integration strategy for integration testing in the small is to specify which modules need to be combined and when this should take place and how many should be combined.