What is the correct answer?
4
A. CSS1.0 and CSS 2.0,
B. CSS1.0, CSS 2.0, and CSS 3.0 selectors.
C. CSS 2.0, and CSS 3.0 selectors.
D. CSS1.0, CSS 2.0, CSS 3.0 and CSS 4.0 selectors.
Please do not use chat terms. Example: avoid using "grt" instead of "great".