Match each pseudo-class with the appropriate description.

Question

A. the element is in the process of being clicked or otherwise activated
B. the element is checked or otherwise selected
C. the element has the focus
D. user entry in the field is required 
E. the content entered by a user meets the rules for the field

Answer 1

A. :active
B. :checked
C. :focus
D. :required
E. :valid