Canadian multiculturalism act was passed in the year:

The correct option is 1988.

The Canadian Multiculturalism Act (French: Loi sur le multiculturalisme canadien) is a landmark piece of legislation enacted by the Parliament of Canada.
It was introduced by the government of Prime Minister Brian Mulroney and officially received Royal Assent on July 21, 1988.

This act codified the federal government's commitment to promoting and preserving multiculturalism in Canada, ensuring that all citizens could keep their identities, take pride in their ancestry, and enjoy a mutual sense of belonging.