While presenting at the Oscar ceremony, Marlee Matlin did something that was controversial to the Deaf community, what was this?

Answer and Explanation:

Marlee Matlin is an actress who won an Academy Award for Best Actress. As a matter of fact, she is the only deaf performer to have ever won an Oscar. It turns out that, when she was presenting at the Oscar ceremony, she caused some controversy in the Deaf community. At first, she addressed the audience in sign language, having an interpreter. However, when introducing the nominees for Best Actor, she used her own voice. While many people were moved by this decision, the Deaf community was mostly confused and divided. It helped kindle the debate over the use of sign language versus spoken speech by those who are hearing-impaired.