A: No, not in any direct way.
A spousal benefit can be collected as early as age 62. The spousal benefit default calculation is 50 percent of the other spouse’s primary insurance amount (PIA).
A person’s primary insurance amount is the amount of their monthly retirement benefit, if they file for that benefit exactly at their full retirement age. Note that the age at which the other spouse files for Social Security benefits doesn’t affect this calculation.
https://articles.opensocialsecurity.com/spousal-benefit-calculation
If a spousal benefit is collected prior to the recipient’s full retirement age, the benefit is reduced. A dependent’s Social Security benefit is also based on the PIA—rather than the claiming age—of the qualifying parent:
https://fas.org/sgp/crs/misc/R43542.pdf