Amedical condition that was diagnosed, treated, or both within a specified period of time immediately preceding the enrollee's effective date of coverage is called a(n):

Pre-existing Condition

Explanation:

Chronic illnesses and medical conditions (severe or not) may be considered pre-existing conditions.

Example:  Diabetes, hypertension, epilepsy.

Pregnancy before enrollment is not considered pre-existing condition.

Insurance companies can't refuse to cover treatment for  pre-existing conditions or charge more.

answer; (c); to assure that workers have the right to a safe workplace and that it is the employer's responsibility to provide safe and healthy workplace;