"For years his silence bewildered and frightened me, though I always trusted him, I never hated him. And when I was hold enough to understand, he told me that of all people a tzaddik especially must know of pain. A tzaddik must know how to suffer for his people, he said. He must take their pain from them and carry it on his own shoulders. He must carry it always." Explain

The intermediary between men and God is bound to suffer.

Explanation:

A Tzaddik (the righteous one in Hebrew) is a spiritual master. Because of his extraordinary piety and willpower he is considered to be the intermediary between men and God. Like Jesus, a Tzaddik is bound to relieve the common people of their pain by taking it on to himself. Carry it (the pain) on his own shoulders is a clear reference to Jesus carrying the cross, the religious symbol of suffering.  

im not 100 percent sure but i think its a

b would have to be the answer