Suppose we create a computer screen out of black/white pixels. Each row of the screen is controlled by a 4-bit number. For example, here we display a letter A 0110 2. 1001 1001 1001 a) Give the hexadecimal digits to display the letter C. (Since you choose the "font", show your work!) b)What letter is displayed by entering F22AE (leftmost digit is top row)