I need some help, first of all I don't get what it's asking.

Astudent wants to replace the underlined word to make the meaning more precise. which phrase would be the best replacement for the underlined phrase ?

Which of the following sentences most clearly uses topical organization? a. do you have problems with mosquitoes and gnats? fabulous exterminators can ! b. we've gathered at this conference to discuss three things: poverty, war, and disease. c. killer bees have spread up from south america into mexico and the united states. d. first, gather all the painting supplies you need. next, lay them out on a work bench.

Read the passage. tomorrow, senator connie sullivan will meet with us farmers to discuss a new trade deal. she will also discuss the state of iowa’s economy and the crucial need to modernize nafta. according to the us chamber of commerce, approximately 14 million jobs depend on trade with mexico. at a delegate meeting last wednesday, sullivan said, "this is a number much too large to ignore.” which sentence corrects the error in capitalization? tomorrow, senator connie sullivan will meet with us farmers to discuss a new trade deal. she will also discuss the state of iowa’s economy and the crucial need to modernize nafta. according to the us chamber of commerce, approximately 14 million jobs depend on trade with mexico. at a delegate meeting last wednesday, sullivan said, “this is a number much too large to ignore.”