An author can create a tone with:
a. careful word choices
b. details of setting
c. both of the above
d. none of the above

C. both of the above would be you answer. I hope this helps! 

1. canadian → ned land  2. resolving action → denouement3. narrator of twenty thousand leagues under the sea → pierre aronnax  4. novel of manners → social class   5. planned action → plot  6. samuel pepys → diary  7. omniscient; first-person, limited → point of view  8. ivanhoe → historical novel  9. robinson crusoe → novel of incident  10. abstract idea → theme of novel

In a group discussion,which of these is the best example of challenging credibility of a source. the answer choice is a