A vector field \(\vec p\) and a scalar field \(r\) are given by \(\vec p=(2x^2-3xy+z^2)\hat i+(2y^2−3yz+x^2)\hat j+(2z^2−3xz+x^2)\hat k\) \(r=6x^2+4y^2 - z^2-9xyz - 2xy + 3xz-yz\) Consider the statements P and Q. P: Curl of the gradient of the scalar field r is a null vector. Q: Divergence of curl of the vector field p is zero. Which one of the following options is CORRECT?