Eligibility for Social Security Disability Income requires what condition?

The correct answer is having a medical condition that lasts 6 months. To qualify for Social Security Disability Insurance (SSDI), an individual must demonstrate that they have a disability that is expected to last at least 12 months or result in death. The length of the condition is crucial because the program is designed to assist those with long-term disabilities that impact their ability to work.

While citizenship and legal residency play roles in determining eligibility for certain types of benefits, SSDI primarily focuses on the medical condition and the length of the disability. Work history is also important; however, the requirement is not strictly 10 years but rather that the person must have acquired enough work credits based on their work history. Thus, the key requirement for SSDI eligibility is specifically tied to having a qualifying medical condition with the requisite duration, making this the accurate criterion.