National Wildlife (Protection) Act was formulated during

• The Natural life Protection Act was established on 9 September 1972. This Act covers the entire of India, away from the State of Jammu and Kashmir as it has its own natural life act. 
• The congress of India brought this standard for the extraordinary need to cover biodiversity. 
• Fresh Information the Wildlife Protection Act, 1972 is an Act of the Parliament of India introduced for insurance of shops and critter species. Prior to 1972, India had just five assigned public premises.

Hence, option A is the correct answer.