Identify the correct statements from the following : (a) CO2 (g) is used as refrigerant for ice-cream and frozen food. (b) The structure of C60 contains twelve six carbon rings and twenty five carbon rings. (c) ZSM-5, a type of zeolite, is used to convert alcohols into gasoline. (d) CO is colorless and odourless gas.

1. A. (a) and (c) only
2. B. (b) and (c) only
3. C. (c) and (d) only
4. D. (a), (b) and (c) only

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