Combining two or more cells to make one is called​

Combining two or more cells into one cell uses a Word feature called: Merge Cells.

Explanation:

answer is:

a). backstage view

explanation:

backstage view is the area where files and data about them is managed— creating, saving, printing, sending to others, inspecting for hidden metadata or personal information, and setting options. so in this way we can add many things to our document swiftly.

i hope you get the idea.