Answer b, because Lady Macbeth states that he is living like a coward in his own esteem.
Marlow is rather ambiguous in his work Doctor Faustus when it comes to fate and free will.
On one hand, it is implied that Faustus has the opportunity to choose his own destiny, to make the appropriate decision, repent for his sins, and then he will be saved. One of the angels tells him the following:
<em>"Faustus, repent yet, God will pity thee." </em>(Act II Scene III)
On the other hand, however, it is implied several times throughout the work that Faustus's decisions don't really matter - his life was preordained, meaning that destiny chooses what happens with him and his life. This leads us to believe that regardless of his desires, Faustus would always go down the 'evil' path because ultimately that wasn't even his decision - it was what destiny picked for him.
This is certainly not english :)
