Question A$)$ A granular material exerts a trapezoidal distributed loading on the beam as shown below. Circle the letter corresponding to the location of the equivalent resultant of this load, measured horizontally from point $A.$

a$)\stackrel{}{x}=1\mathrm{.}5m$

b$)\stackrel{}{x}=2\mathrm{.}5m$

c$),\stackrel{}{x}=3\mathrm{.}0m$