Final answer:
To be eligible for social security survivor benefits, a worker needs to have earned 6 credits in the 13 quarter period before death.
Step-by-step explanation:
In order to be considered insured and thus eligible for limited survivor benefits from social security, a worker must have earned 6 credits during the 13 quarter period ending with the quarter in which the worker died. The option that correctly fills the blank is (b) 6. Social Security survivor benefits are part of the safeguards put in place to protect families when a worker passes away, which also includes the Old-Age, Survivors, and Disability Insurance (OASDI) program. This program is essential for providing financial assistance to surviving spouses, children, and dependent parents under certain conditions.