An External Interaction Exerts a Force $\vec{F}$ On a Certain System as the Place Where the Force

An external interaction exerts a force $\vec{F}$ on a certain system as the place where the force is applied moves a displacement $\overrightarrow{d r}=[d x, d y, d z]$ . Which of the following is the correct component expression for the work done by the interaction on the system?

A) $W=\left[F_{x} d x, F_{y} d y, F_{z} d z\right]$
B) $W=\left|\left[F_{x} d x, F_{y} d y, F_{z} d z\right]\right|$
C) $W=F_{x} d x+F_{y} d y+F_{z} d z$
D) Some other expression (specify)