Tammy made a bracelet using red, white, and blue string. The red string is 2.4 centimeters long, the white string is 2.1 centimeters long, and the blue string is 2.6 centimeters long. What is the total length of the three strings? a.) 7.1 cm c.) 5.5 cm b.) 6.1 cm d.) 4.27 cm