Why are photographs of famine in Bengal during the British period usually considered as primary source ?

Correct option is B

Photographs of the famine in Bengal during the British period are considered primary sources because they illustrate past events as they truly occurred and depict people as they were at that time. Primary sources are original materials from the time of the event, providing direct evidence about the subject. Photographs, in this context, serve as visual records that capture the conditions, emotions, and realities of the period, making them invaluable for historical analysis.