Which of the following are correct expression for torque acting on a body?
A. \vec{\tau}=\vec{r} \times \vec{L}
B. \vec{\tau}=\frac{d}{d t}(\vec{r} \times \vec{p})
C. \vec{\tau}=\vec{r} \times \frac{d \vec{p}}{d t}
D. \vec{\tau}=I \vec{\alpha}
E. \vec{\tau}=\vec{r} \times \vec{F}
( \vec{r}= position vector; \vec{p}= linear momentum; \vec{L}= angular momentum; \vec{\alpha}= angular acceleration; I= moment of inertia; \vec{F}= force; t= time)
Choose the correct answer from the options given below: