What is the total square footage contained in Sam's parcel that is 105 feet wide and 201 feet deep?

To determine the total square footage of Sam's parcel, you multiply the width by the depth. In this case, the width is 105 feet and the depth is 201 feet. The calculation is straightforward:

105 feet (width) x 201 feet (depth) = 21,105 square feet.

This confirms that the correct choice is the one that reflects this product. Each dimension is correctly utilized in the formula for calculating area, which is length multiplied by width. This ensures that the area is accurately computed for a rectangular plot.

Other provided options reflect incorrect calculations or misunderstandings of the formula for calculating area, which cements the value of clearly applying the multiplication of the two dimensions to arrive at the answer.