What is the cdc, and what does it have to do with healthy weight levels?

CDC is the Center for Disease Control, it's a federal organisation in the United States.  Its mandate is to analyse, control and prevent any form of health epidemic issues.  For example, in the measles crisis right now, CDC is involved in coordinating the quarantines, the treatment and so on.

Part of CDC's role is also to emit recommendations for the general public health, especially in prevention of epidemic issues.  Overweight has reached epidemic proportions in the United States and that affects the health of the general population.  So, it's right within the mission of  CDC to do some recommendations on the subject of healthy weight levels.

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.