What should a speaker most avoid in order to give an effective speech?

Central ideas are the most ideas in a text.

The brother of a presidential candidate writes an editorial in which he defends this candidate against charges of corruption. in such a circumstance, it is most appropriate for the reader to a) suspect that the candidate may have been framed. b) consider whether the candidate has the best family or not. c) wonder if the writer may be biased, due to his family connection. d) wonder if the writer may be inaccurate, due to wanting to get people to read his column. \

Name two events that gatsby tells nick about that nick finds suspect . what proof does gatsby offer ?