With reference to green hydrogen, consider the following statements : 1. It can be used directly as a fuel for internal combustion. 2. It can be blended with natural gas and used as fuel for heat or power generation. 3. It can be used in the hydrogen fuel cell to run vehicles. How many of the above statements are correct?

1. Statement 1: Green hydrogen, like any hydrogen, can be used directly as a fuel in modified internal combustion engines (H2-ICE). While challenges exist regarding efficiency and NOx emissions compared to fuel cells, it is a technically feasible application. This statement is correct. 2. Statement 2: Hydrogen can be blended with natural gas (up to certain limits) and transported through existing pipelines to be used as fuel for heat or power generation in industrial or residential settings. This helps decarbonize the gas grid. This statement is correct. 3. Statement 3: Hydrogen fuel cells generate electricity through an electrochemical reaction between hydrogen and oxygen, producing only water as exhaust. This electricity can power electric motors in vehicles (FCEVs - Fuel Cell Electric Vehicles). Using green hydrogen makes this a zero-emission transportation solution. This statement is correct. 4. Since all three statements describe valid applications of green hydrogen, the answer is (C) All three.