To be able to answer a question that involves a graph, I would need to see the graph :)
The correct answer is letter A.
Explanation:
Nowadays, cell phone use is becoming more and more common, and this results in some effects that are harmful to people, as well as physical causes such as telephone poll-takers, for example, who find it more difficult to perform their work.
There is not enough information provided, can you give details?
