A 3-meter long steel cylindrical shaft is rigidly held at its two ends. A pulley is mounted on the shaft at 1 meter from one end; the shaft is twisted by applying torque on the pulley. The maximum shearing stresses developed in 1m and 2m lengths are respectively \[{{\tau }_{1}}\] and \[{{\tau }_{2}}.\]the ratio \[{{\tau }_{2}},{{\tau }_{1}}\] is:

• A. 44228
• B. 1
• C. 2
• D. 4