Answer:
B. William ignored and then convinced them.
Step-by-step explanation:
This question came from a true story written by Katy Duffield, about a young William Kamkwamba who lives in Malawi, Africa. When he built a 16-foot-tall tower from trunks of blue gum trees with the help of his friends, no one believed him that his machine could create electricity.
He never stopped at that, he rather went ahead and connected two wires from the dynamo to a light socket he had made from a reed that held a small bulb. When he applied what he has learnt in the process, the light bulb flickered and flashed to life and then the crowd cheered, well done.