Step 1: Analyze the question's focus. The question asks for a printmaker who specifically documented the suffering of the poor during the Bengal Famine of 1943.
Step 2: Evaluate the artists. Both Somnath Hore and Chittoprasad created powerful works about the famine. However, Chittoprasad Bhattacharya acted as a visual reporter during the famine, creating stark and immediate lino-cuts and drawings that were so powerful the British authorities suppressed them. Somnath Hore was also deeply affected and his experiences shaped his later work, most notably his "Wounds" series.
Step 3: Conclude based on historical context. For direct, contemporary documentation and awareness-raising *during* the famine through printmaking, Chittoprasad is the most accurate answer.