When audience members strongly disagree with the speaker's claims, they are considered a(n) audience. a. hostile b. counter c. uninformed d. apathetic?

In that case, they are considered as apathetic Audiences.
apathetic audience refers to the type of audiences who are unresponsive or oppose the core message that given by the speakers.
This type of situation happens either because of conflict of principle or simply because the speaker fail to give proper reasoning for the audiences