Explain the Four Degrees of Felonies Found in the Model

Explain the four degrees of felonies found in the Model Penal Code?

A) capital offenses, for which the maximum penalty is death
B) first degree felonies, punishable by a maximum penalty of life imprisonment
C) second degree felonies, punishable by a maximum of ten years' imprisonment
D) third degree felonies, punishable by a maximum of five years' imprisonment