c
\(\overrightarrow{ F }=2 \hat{ i }+\hat{ j }-\hat{ k }\) \(\quad \overrightarrow{ r }=3 \hat{ i }+2 \hat{ j }-2 \hat{ k }\)

\(\overrightarrow{ F } \cdot \overrightarrow{ r }=6+2+2=10\)

\(\overrightarrow{ F } \times \overrightarrow{ r }=\left|\begin{array}{ccc}\hat{ i } & \hat{ j } & \hat{ k } \\ 2 & 1 & -1 \\ 3 & 2 & -2\end{array}\right|\)

\(=\hat{ i }(0)-\hat{ j }(-1)+\hat{ k }(1)\)

\(=\hat{ j }+\hat{ k }\)

\(|\overrightarrow{ F } \times \overrightarrow{ r }|=\sqrt{2}\)