Respuesta :
Answer: Option C
Explanation:
Fracking is the another name for hydraulic fracturing, which is new form of unconventional gas production.
This process involves injecting a solution of water mixed with other solutions in a wellbore at high pressure due to which the the adjacent rock formation are fractured and allowing he natural gas to escape.
Then the natural gas returns back to the well bore once the initial injection is completed.
There are chances of methane leakage into the water supply because of this process.