Final answer:
Health insurance is the benefit most often available through an employer, largely due to the Employer mandate of the Affordable Care Act. The correct option is b.
Step-by-step explanation:
The benefit most often available through an employer is B) Health insurance. This type of insurance, known as employment-based insurance, is provided in whole or in part by an employer or a union and may cover just the employee or the employee and their family.
Employers with more than 50 employees are mandated by the Employer mandate to offer health insurance to their employees.
Other forms of insurance such as disability, dental, or vision may also be offered, but health insurance is typically the most common due to its inclusion in the employer mandate of the Affordable Care Act, otherwise known as Obamacare. The correct option is b.