Total Pressure on the Vertical Face of a Retaining Wall

Multiple Choice

Total pressure on the vertical face of a retaining wall of height per unit run exerted by the retained earth weighing per unit volume, is

A) wh [(1 - ) /(1 + sin ) ]
B) wh² [(1 - ) /(1 + sin ) ]
C) wh² [(1 - ) /2(1 + sin ) ]
D) wh²[(1 - ) /3(1 + sin ) ]