Final answer:
To become eligible for social security disability benefits, a worker must have a disability that will last at least twelve months.
Step-by-step explanation:
To become eligible for social security disability benefits, a worker must demonstrate that their disability will last at least twelve months. This means that option b) 1 year is the correct answer. The disability payout is a second Social Security benefit, which is distributed to workers who are unable to work due to a disability. The Supplemental Security Income is a third benefit that provides supplemental income to adults or children with significant disability or to elderly individuals below an income threshold.