Which of the following statements is $NOT$ true according to the principles of green chemistry?
- AIt is good to use the technique of protection and deprotection of functional groups in organic synthesis.
- BUse of chemicals derived from plant resources is better than crude oil.
- CUse of biodegradable pesticides is advantageous.
- DUse of supercritical $CO_2$ as a solvent is better than organic solvents.
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