Final answer:
When purchasing an insurance policy, individuals may be required to prove their insurability, which means demonstrating that they are in good health or have a low risk of a claim. In this case, the question is asking who among the family members does not need to prove insurability. It is likely that the two children, Jon and Kris, do not need to prove insurability.
Step-by-step explanation:
Mike purchased a policy to provide coverage for himself, his wife Linda, and their two children, Jon and Kris. All of them would need to prove insurability EXCEPT. When purchasing an insurance policy, individuals may be required to prove their insurability, which means demonstrating that they are in good health or that they have a low risk of filing a claim. This is typically done through medical underwriting, which involves a review of the applicant's medical history and sometimes requires a medical examination. In this case, the question is asking who among Mike, Linda, Jon, and Kris would not need to prove insurability. Since the question does not specify, it is difficult to determine the exact answer. However, it is common for dependent children to be covered under their parents' policy without needing to prove insurability. Therefore, it is likely that the correct answer is Jon and Kris, the two children.