I believe the answer is B. Nguyen explains how buses reduce traffic by lowering the number of cars on the road.
The passage says “Clearly, buses reduce traffic rather than cause it”. Answer B is the only answer that mentions traffic in a logical way.
I hope this helps!
“Hello, this Mike Patterson, Research and Development
Answer:
Naught naughty websites and scam artists
Explanation:
He bought a pen. That’s it