Final answer:
Disability insurance is the term most often used to describe insurance protection against short-term or long-term illness or injury.
Step-by-step explanation:
The term most often used to describe insurance protection against short-term or long-term illness or injury is disability insurance.
Disability insurance is designed to provide income replacement in case of a disability that prevents an individual from working or earning a regular income. It can cover both short-term and long-term disabilities, depending on the specific policy.
For example, if Fran were to get injured and unable to work for an extended period, disability insurance would provide financial support in the form of regular payments or a lump sum, depending on the policy terms.