What is the difference between a co-payment and co-insurance?

a. Co-payment refers to two spouses paying for the same coverage, and co-insurance refers to
two spouses receiving the same benefits.

b. A co-payment is a flat fee for each service, and co-insurance is based on a percentage of the
costs incurred.

c. Co-payment is when a group of individuals work to cover each other's medical expenses, and
co-insurance is when an individual has multiple insurance policies from different companies.

d. A co-payment is when an employer helps an employee pay for insurance premiums, and co- insurance is when an employer helps an employee find better insurance than they could alone.