How do disparate impact claims under the ADEA differ from those under Title VII?

Question 9 options:

a)

In the second step, the employer is only required to show that the statistical disparity is caused by a reasonable factor other than age

b)

The ADEA disparate impact analysis does not allow the plaintiffs to prevail by establishing that alternate practices would be equally effective but not create a disparate impact

c)

Both a and b

d)

None of the above