$1.$ For the given gravity retaining structure and soil conditions shown below:

$($a$)$ What are the factors of safety against overturning, sliding, and bearing capacity failure?

$($b$)$ Is this wall well$-$proportioned? Explain your answer.

$($c$)$ What other factors should be considered prior to accepting this geometry as final design configuration?

Note: Define carefully the way you will treat the water table in the backfill.