With the Reference to Four Gases Co2,co, Cl2 and O2, Which One of the Options in the Table is Correct?

With the reference to four gases CO2,CO, Cl2 and O2, which one of the options in the table is correct?

Correct answer is option B. CO2, Cl2, CO2, CO. Explanation: CO2, Cl2, CO2, CO is the Correct One from the Options in the table regarding Co2,co, Cl2 and O2.