When preparing images for the web so that they open faster, what is screen resolution?#
a. Screen resolution refers to the number of pixels on a screen, usually expressed as width x height (e.g. 1920x1080).
b. Screen resolution refers to the clarity of the text and images displayed on a screen, often measured in pixels per inch (PPI).
c. Screen resolution refers to the aspect ratio of a screen, such as 16:9 or 4:3.
d. Screen resolution refers to the refresh rate of a screen, measured in hertz (Hz).