2 (1 point) The CSS RGB color value system uses 255 as the value for the highest presence of color (red, green, blue). True False Question 3 (1 point) In a CSS contextual selector, the plus (+) sign is used to match an element which immediately precedes or is immediately adjacent to another element. True False Question 4 (1 point) You reference a class CSS attribute selector using the class name preceded by a pound (#) symbol