Consider a pipe that branches out into two parallel pipes and then rejoins at a junction downstream. The two parallel pipes have the same lengths and friction factors. The diameters of the pipes are $2$ cm and $4$ cm $.$ If the flow rate in one pipe is $10\frac{L}{m}in,$ the flow rate in the other pipe is

a$)10\frac{L}{m}in$

b$)3\mathrm{.}3\frac{L}{m}in$

C$)100\frac{L}{m}in$

d$)40\frac{L}{m}in$

$($e$))56\mathrm{.}6\frac{L}{m}in$