To set a column style, click this button of the page layout tab?

Click the page layout in the ribbon menu of the application, then click the down button of the columns option and select the desired column style.

Explanation:

Microsoft word is a software used to create and edit text documents. The ribbon menu is at the top of the application. It holds the functions and styles of the word processing tool.

The column of a word document can be styled to have one (default) or more columns. This functionality is found in the page tab in the ribbon.

answer; i believe the correct answer is (a) all trenches must have access/egress;

answer; the above statement is (true);