The answer is C). He has learned about Kamkwamba’s story and wants it to reach a wider audience.
Explanation:
The filmmaker decides to make a documentary about Kamkwamba’s story because, after learning about his (young Kamkwamba’s) inspiring rise from illiteracy, poverty and lack of electricity, to create a wind turbine and produce electricity, he (the filmmaker) wants a wider audience to be motivated through the film industry which is such a great platform to showcase the real life story of how anyone can achieve greatness in the midst of poverty and challenging situations.
