Final answer:
The specific cumulative GPA required for KA members is not provided in the given information. It is recommended to refer to the official guidelines or policies of KA to determine the exact requirement.
Step-by-step explanation:
Based on the given information, we cannot determine the specific cumulative GPA that KA members must maintain. The information provided does not contain the necessary details regarding the grade scale or requirements for KA members. In order to determine the exact cumulative GPA required, it would be best to refer to the official guidelines or policies of KA.