Portuguese designer Miguel Neiva created a system of symbols that allows colorblind people to identify colors. The system consists of using symbols that identify primary colors (blue, yellow, and red). Furthermore, the juxtaposition of two of these symbols allows the identification of secondary colors (such as green, which is yellow combined with blue). Black and white are identified by small squares: the one that symbolizes black is filled, while the one that symbolizes white is empty. The symbols that represent black and white can also be associated with the symbols that identify colors, meaning whether these are light or dark. According to the text, how many colors can be represented by the proposed system? (A) 14 (B) 18 (C) 20 (D) 21 (E) 23
Portuguese designer Miguel Neiva created a system of symbols that allows colorblind people to identify colors. The system consists of using symbols that identify primary colors (blue, yellow, and red). Furthermore, the juxtaposition of two of these symbols allows the identification of secondary colors (such as green, which is yellow combined with blue). Black and white are identified by small squares: the one that symbolizes black is filled, while the one that symbolizes white is empty. The symbols that represent black and white can also be associated with the symbols that identify colors, meaning whether these are light or dark.
According to the text, how many colors can be represented by the proposed system?\\
(A) 14\\
(B) 18\\
(C) 20\\
(D) 21\\
(E) 23