Based on the following B vs$.$ H plot for a magnetic material, determine the following:

a$)$ the initial permeability

b$)$ the saturation flux density

c$)$ the remanence

d$)$ the coercivity

e$)$ the saturation magnetization $-------------------$ Answers must include the corresponding units and the procedure must be complete, including marking on the graph to illustrate where the numbers come from in the corresponding cases and$/$or the equations used with substitution of values.