carbon monoxide is:\na danger when driving on the open highway\nan odorless, colorless, toxic gas\nonly…

carbon monoxide is:\na danger when driving on the open highway\nan odorless, colorless, toxic gas\nonly found in large cities\nhealthy to breath in
Answer
Answer:
B. An odorless, colorless, toxic gas
Brief Explanations:
Carbon - monoxide is well - known for being odorless, colorless, and highly toxic. It binds to hemoglobin in the blood, preventing normal oxygen transport. It is not healthy to breathe in, not only found in large cities, and its danger isn't specifically related to open - highway driving.