Consider the following activities : 1. Production of crude oil 2. Refining, storage and distribution of petroleum 3. Marketing and sale of petroleum products 4. Production of natural gas How many of the above activities are regulated by the Petroleum and Natural Gas Regulatory Board in our country?
a
Only one
b
Only two
c
Only three
d
All the four
Infrastructure & EnergyRegulatory BodiesPetroleum and Natural Gas Regulatory BoardPNGRBCrude oil productionRefining and distributionNatural gas production