Final answer:
In the case of an insurer and prospective insured, a contract would be legal if the applicant is intoxicated at the time of application, although there may be other legal implications to consider.
Step-by-step explanation:
In the context of insurance contracts, it is important for an insurer and the prospective insured to meet certain legal requirements. Among the given options, the example that would result in a legal contract is when the applicant is intoxicated at the time of application.
While all the other options listed would raise legal concerns, such as the applicant being underage, under the influence of medication, or having a prior felony conviction, being intoxicated does not automatically invalidate a contract. However, it is worth noting that there may still be other legal implications depending on the circumstances and specific laws governing the contract.