Consider the following statements about bioremediation :
1. It may be defined as any process that uses microorganisms or their enzymes to return the environment altered by contaminants to its original condition.
2. Bioremediation may be employed in order to attack specific contaminants, such as chlorinated pesticides that are degraded by bacteria.
Which of the statements given above is/are correct?

Options

A. 1 only
B. 2 only
C. Both 1 and 2
D. Neither 1 nor 2