To qualify for Social Security disability income benefits, what must Emily be?

To qualify for Social Security disability income benefits, an individual must be fully insured according to Social Security requirements. This means that Emily needs to have earned a certain number of work credits, accumulated through paying Social Security taxes, to demonstrate a history of employment and contribution to the system.

The concept of being "fully insured" is crucial because it establishes eligibility for disability benefits. Individuals who are partially insured (as specified in option B) do not meet the threshold needed to receive disability income. Additionally, the requirement regarding living no longer than 12 months is not a qualification for access to benefits but rather a criteria for the type of disability that would qualify (permanent versus temporary). Lastly, being married with children is not a factor in determining eligibility for disability benefits.

Therefore, being fully insured per Social Security standards is what qualifies Emily for disability income benefits.