Right choice is (a) True
To explain: Thioether oxidation can remove pesticides by oxidizing the Sulphur group present in the pesticides, also, plants can remove components of pesticides for their immediate surroundings by a process called as phyto-remediation, followed by a technique called as phyto-extraction for removal of metals by absorbing the harmful compounds present in pesticides by the roots of the plants. These process are really helpful and it doesn’t cause any side effects to the environment.