Question

this separates a filename from its extension when exporting or saving an image.
underscore
hpyhen
period
hashtag
question 21
4 pts
a standard format used by photo hardware devices and programs that support many different color modes, and one that can be used on the web.

Explanation:

In computer - related knowledge, when exporting or saving an image, a period (.) separates a filename from its extension. For example, in "image.jpg", "image" is the filename and "jpg" is the extension separated by a period. Also, JPEG (Joint Photographic Experts Group) is a standard format used by photo hardware devices and programs that support many different color modes and can be used on the web.

Answer:

For the first question: C. Period
For the second question (not shown with options but based on common knowledge): JPEG