Identify the cause suggested by the information presented in the following tables.

Is the cause a sufficient condition, necessary condition, or both sufficient and necessary condition? Can you identify the method?

*1. Possible Conditions Occurrence A B C D E Phenomenon * * * * 2 * * * * 3 * * 4 * * 5 * * 2. Occurrence A B Possible Conditions C D E Phenomenon * * * * * 2 * * *