A widely accepted way of thinking or behaving is a convention.
It denotes set of generally accepted standards and norms and a way in which something is usually done. Example for convention is shaking hands when greeting someone. Controversial on the other hand is something causing people to have opposing ways.
Answer: B) thrown
Explanation: I eliminated A and C because they didn't make sense for the answer. Next I thought about what strewn meant ( untidily scattered ) and picked the one most similar to the definition, thrown.
I j-hoooope u get it right