When has a widow or widower reached a blackout period in regards to Social Security

payments?

O When a deceased worker's children reach age $18$ and before the surviving spouse

dies.

When a deceased worker's children reach age $18$ and before the surviving spouse

reaches age $60.$

When a deceased worker's children reach age $21$ and before the surviving spouse

reaches age $60.$

There is no such thing as a blackout period.