In my opinion, the correct answer among the choices listed above is the third option. <span>The headings and subheadings of the body of an outline should be interesting. It should be interesting in order to catch the attention of the readers. These are the parts that the readers read first.</span>
"Today nobody brought his or her instrument" is correct. It is common for people to use "their" in a sentence like this, but "his or her" is the more proper term.
