Final answer:
The protected classes added in the Fair Housing Amendments Act of 1988 are familial status and handicap.
Step-by-step explanation:
The protected classes that were added in the Fair Housing Amendments Act of 1988 are familial status and handicap. This means that it is illegal to discriminate in housing based on whether a person has children (familial status) or has a disability (handicap). These additions were made to further protect individuals from housing discrimination. Therefore, the correct answer to which protected classes were added in the Fair Housing Amendments Act of 1988 is d. Familial Status and Handicap.