Explanation:
Baldwin talks of a "disease" which afflicts black Americans and can wreck race relations and creating a "rage in the blood" so he is using the "disease" as a metaphor for probably the rage that black Americans have for experiencing the inequalities of life in the US especially in the 1960's when the civil rights movement was so strong and segregation was so strongly practiced in the South still.
I think the most strongest traits in a persuasive essay: is organization, a voice, and word choice.
Evident is the first word. It means the same as obvious, there is evidence that the theater had been well taken care of because of it's appearance.
