Where are software-based firewalls usually located?

Which of the following configures a margin for an element with the following values: top margin 30 pixels, left margin 150 pixels, right margin 0 pixels, and bottom margin 0 pixels?

a. margin: 150px 20px 0 300px; b. margin: top-30, left-150, right-0, bottom-0; c. margin: 30px 0 0 150px; d. margin: 30px 150px 0 0;

____________________ cache is a type of cache that helps speed the processes of a computer because it stores frequently used instructions and data.

Fill in the blank(s) with the appropriate word(s).