You are creating a mobile web site for your company's polling service. users will be completing polls and surveys about various topics. how can you simplify the page layout to increase this site's usability on mobile devices?

The answer to the given question is "Using radio keys, checkboxes, and drop-down lists, whenever possible, instead of text boxes".

Explanation:

To increase the site's usability we use radio keys, checkboxes, and drop-down lists, whenever possible because nowadays peoples have no time to write or type. People like to select from the option or click on buttons. That's why we must use these checkboxes, drop-down lists, etc from the place of the text box.  

That's why the answer to this question is "Using radio keys, checkboxes, and drop-down lists, whenever possible, instead of text boxes".

make sure each item is its own paragraph.