The length of a turtle is 60 cm60\text{ cm}60 cm plus a third of its length. How long is the turtle?(A) 70 cm70\text{ cm}70 cm (B) 75 cm75\text{ cm}75 cm (C) 85 cm85\text{ cm}85 cm (D) 90 cm90\text{ cm}90 cm (E) 120 cm120\text{ cm}120 cm