A contractor is preparing to construct a $10,000$ square foot steel framed building. Prior to

pouring the slab$-$on$-$grade the contractor plans to compact the subgrade which is comprised

of plastic clays. Which of the following compactors is best suited for the site?

$($A$)$ Sheepsfoot Roller

$($B$)$ Vibratory Plate Compactor

$($C$)$ Vibrating Smooth Wheel Roller

$($D$)$ Pneumatic Tire Roller