If, $\vec a,\vec b,\vec c,\vec d$ are any four vectors, then $(\vec a×\vec b) × (\vec c×\vec d)$ is a vector

perpendicular to $\vec a,\vec b,\vec c,\vec d$ equally inclined to $\vec a,\vec b,\vec c,\vec d$ equally inclined to both $\vec a×\vec b$ and $\vec c×\vec d$ none of these

equally inclined to both $\vec a×\vec b$ and $\vec c×\vec d$

Clearly $(\vec a×\vec b) × (\vec c×\vec d)$ is perpendicular to both $\vec a×\vec b$ and $\vec c×\vec d$. Hence, $(\vec a×\vec b) × (\vec c×\vec d)$ is equally inclined to both $\vec a×\vec b$ and $\vec c×\vec d$.