Peter has been a production supervisor at a plant for over $20$ years. His performance record has been excellent until last year. Peter's manager gave him low ratings during the last performance review. Peter just found out that his company is downsizing and that he is going to be laid off. Peter is $58$ years of age. If Peter were to sue his company for discrimination, which of the following law would be most appropriate?

Select one:

a$.$ Equal Employment Opportunity Act of $1972$

b$.$ Age Discrimination in Employment Act of $1967$

c$.$ Civil Rights Act of $1991$

d$.$ Civil Rights Act of $1964$