A glass rod is 50 cm long and 0.020 m in diameter. The coefficient of volume expansion of the rod is 2.7 x 105 °C-'. When the temperature increases by 60 °K, its change in length in m is a.) 1.2 x 104, b.) 1.7 x 10°, c.) 2.9 x 10, d.) 1.7 x 104 e.) 2.7 x 104