C sending harassing emails
The first headline implies that protestors only peacefully continued while the second headline states they fought back with force.
Characters dialogue would be my answer. is the best to look at.
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.