For Those Who Continue to Work While Drawing Social Security

For those who continue to work while drawing Social Security retirement benefits,

A) there is no reduction in benefits for those past normal retirement age.
B) there is a reduction in benefits for those under age 70 and earning more than a specified threshold amount.
C) there is no reduction in benefits for anyone presently retired,but this will be changed for future retirees.
D) there is a $1 reduction in benefits for every $3 earned starting with the first dollar of earned income for all retirees regardless of age.