The first computer program was used to the analytical engine calculate numbers. who invented that program?

Charles Babbage

Explanation:

Analytical engines were presumed to be the first general-purpose computer which was designed sometime in the 19th century by Charles Babbage -  a British mathematician and inventor. A series of punch cards was used by Charles Babbage in his design of the engine. These punch cards were used for various operations such as arithmetical operations, numerical constants and other operations such as load and store.

Hope this works!

this would definitely be a.

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.