With All Else Equal, Under Which of the Following Conditions

Short Answer

With all else equal, under which of the following conditions would the drop in pressure occurring while a fluid flows through a tube be greatest? $\begin{array}{lll}~~~~~~~{Tube}&{ Diameter}& {Fluid~ Viscosity }\\\hline\text { A. A } & \text { Small } & \text { Low } \\\text { B. B } & \text { Large } & \text { Low } \\\text { C. C } & \text { Large } & \text { High } \\\text { D. D } & \text { Small } & \text { High }\end{array}$