Through reading Malamud's story you can realize that, while Sobel loves to read, he doesn't believe much in education as a means to better his life. Feld is a strong believer of this, which he demonstrates with his actions and approach to work when he offers Sobel more money if he comes back to work with him. Therefore, your best answer is option C.
Examples, one with a comma and one without: Shakespeare was born in Stratford and went on to write Hamlet. Shakespeare was born in Stratford, later writing Hamlet
