The answer to this question is A. Chlorofluorocarbon has the greatest heat trapping ability per molecule of the list of answers. Chlorofluorocarbons, which is also commonly referred to as CFCs, consist of three different things: chlorine, carbon, and fluorine.
Although you may have never heard of the term chlorofluorocarbon or the term CFCs before, you are probably familiar with Freon, which is a commonly used source of refrigeration or in cars. Many people recommend not using CFCs because their effects on the environment are very bad and difficult to correct after a long period of use.
Chlorofluorocarbon has the greatest heat-trapping ability per molecule. Also referred to as CFCs, they are composed of carbon, fluorine, and chlorine. They are commonly referred to as Freon, which is the Dupont brand name. CFCs are commonly used as propellants, as refrigerants, and as different solvents to dissolve some solutes.
CFCs can cause the ozone depletion of the upper layer of the atmosphere hence the production of these compounds have been strictly controlled in accordance with the Montreal Protocol. Instead, they are being replaced by HFCs. They have a tetrahedral symmetry just as there is in the simple alkanes.