Manisha took some vinegar in a test tube and added some baking powder to it. Then she lit a matchstick and brought it near the mouth of the test tube. The flame of matchstick got extinguished.Which of the following is correct conclusion regarding the given experiment?

• A. Carbon dioxide gas does not support burning.
• B. Air contains carbon dioxide.
• C. Oxygen gas present in the air is necessary for burning.
• D. Oxygen gas can extinguish fire.