Section 804(c) of the Fair Housing Act, 42 U.S.C. 3604(c), as amended, makes it unlawful to make, print, or publish, or cause to be made, printed, or published, any notice, statement, or advertisement, with respect to the sale or rental of a dwelling, that indicates any preference, limitation, or discrimination because of race, color, religion, sex, handicap, familial status, or national origin, or an intention to make any such preference, limitation, or discrimination.