An Aluminum Bar of Diameter D = 52 Mm Is $T_{1}$

An aluminum bar of diameter d = 52 mm is twisted by torques $T_{1}$ at the ends. The allowable shear stress is 65 MPa. The maximum permis- sible torque $T_{1}$ is approximately: (A) $1450 \mathrm{~N} \cdot \mathrm{m}$
(B) $1675 \mathrm{~N} \cdot \mathrm{m}$
(C) $1710 \mathrm{~N} \cdot \mathrm{m}$
(D) $1800 \mathrm{~N} \cdot \mathrm{m}$