C). <u>He has learned about Kamkwamba’s story and wants it to reach a wider audience.</u>
Explanation:
The filmmaker decided and was determined to frame a documentary relating to Kamkwamba's story as he 'learned about his story of rising from a state of relative poverty to innovating the 'wind turbine' that produced electricity'. His striving and engrossing tale to accomplish his dreams would encourage the majority to initiate their steps towards their dreams and hence, would be able 'to relate to a wider audience'.
