For the retaining wall and the parameters shown below, answer the following questions. $b_1=3ft.$

$b_t=2ft.$

$b_3=5ft.$

$B=10ft.$

$H=14ft.$

$H1=10ft.$

$D_f=2ft.$

A$.$ Determine factor of safety against overturning

B$.$ Determine safety factor against sliding if the passive earth pressure is included

C$.$ Determine the safety factor against capacity failure

For the retaining wall and the parameters shown below, answer the above question part A B and C$.$