A project requires transporting $150\mathrm{.}000$ bricks by trucks from a brickyard to a jobsite $53$ miles from yard. A truck, which can haul $3,000$ bricks per load, will average $50m\frac{i}{h}r$ loaded and $55m\frac{i}{h}r$ ei forklift at the yard can load bricks at a rate of $2,500$ bricks$/$hr$.$ A skid loader at the jobsite will un$!$ distribute the brick at a rate of $1,800$ bricks$/$hr$.$ The trip time should be :

a$.4\mathrm{.}89hr/$ trip

c$.5\mathrm{.}3hr/$trip

b$.5\mathrm{.}2h\frac{r}{t}$rip

d$.4\mathrm{.}95hr/$trip