Is astute a positive or negative connotation

What example is most likely from a cover letter

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. \

Look up the information for as many of these sources aspossible and write the works cited entry for each one. (you may make up dates and editions where necessary for the purposes of this exercise.)1. mark twain’s  the mysterious stranger2. a dictionary entry for the word  castigation  from  merriam-webster  (any edition)3. an article in  cosmopolitan  magazine by jennifer grant called “all you need to know”4. an encyclopedia entry for the name “geraldine ferraro” from  world book encyclopedia5. a website article titled “welcome to oz” with no listed author or publisher and no corporate affiliation