Which of the following statements concerning educational tax credits and savings opportunities is correct?

a. The Lifetime Learning Credit is equal to 10% of qualified educational expenses up to a certain limit.

b. The American Opportunity Tax Credit (AOTC) is only available for the first 3 years of postsecondary education.

c. A parent who claims a child as a dependent is entitled to take the AOTC credit for the educational expenses of the child.

d. The contribution limit for Coverdell Education Savings Accounts is applied per year per donor.