$48.$ A composites manufacturing facility uses silane to bond glass fibers and carbon fibers to a polymer matrix. It is planning to begin receiving the silane in six$-$ton tube trailers that will be dropped off at an unloading point and connected to the silane distribution system that feeds the manufacturing processes. Considering a blast overpressure under $$worst case$$ conditions, what is the minimum distance from the manufacturing building that the tube trailer should be parked?

a$.100$ feet away

b$.200$ feet away

c$.500$ feet away

d$.1,000$ feet away