Which is the correct label of the line? points C and D lie on line a There is a horizontal line with arrows on either end over the letters A C. There is a horizontal line with arrows on either end over the letters CD. D Two vertical lines beside the letter A Which is the correct label of the line? points C and D lie on line a There is a horizontal line with arrows on either end over the letters A C. There is a horizontal line with arrows on either end over the letters CD. D Two vertical lines beside the letter A