Exercise $8$: Morphology $10\%$

Calculate the structural complexity of the class hierarchy below, by answering the questions that follow, explaining all calculations:

a$)[2\%]W$

b$)[2\%]$ What is the depth of the hierarchy?

c$)[2\%]$ What is the width of the hierarchy?

d$)[2\%]$ What is the edge$-$to$-$node ratio?

e$)[2\%]$ What is the internal reuse of the hierarchy?