Which of the following is true of the Age Discrimination in Employment Act?

a. It protects employees aged 30 and over against age discrimination.

b. was amended in 1990 to include the Older Workers Benefit Protection Act.

c.It mandates employers with 50 or more employees to provide qualifying health insurance coverage or face financial penalties.

d. It formed the Securities and Exchange Commission, which ensures that companies having more than $10 million in assets report information periodically.