Students were creating flashcards to help them remember the advantages and disadvantages of petroleum. Which student's flashcard is correct? Question 6 options: a) Student A: Petroleum is a solid fossil fuel that can be used to make plastics. It is the most polluting fossil fuel. b) Student B: Petroleum is an energy-rich fossil fuel used to make gasoline. It can cause environment damage if it spills or is burned. c) Student C: Petroleum is a gas that burns cleanly and is used to generate electricity. It has to be drilled from under the ocean floor. d) Student D: Petroleum is a type of biomass that is cheap and available most everywhere. It can create greenhouse gases when burned.