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An inspector is explaining to a client why a residential foundation wall is built on a footing that is wider than the wall itself. What is the footing's primary structural function?
A
To form a waterproof barrier that keeps groundwater out of the basement
B
To spread the load from the wall over a larger area of soil so that the bearing pressure stays within what the soil can carry
C
To resist the inward lateral pressure that backfill soil exerts against the wall
D
To act as a capillary break that stops moisture from rising into the wall