Which of the following best explains why the biosphere is a key component of the Earth’s systems?a.The biosphere is a key component of the Earth’s systems because it is a common concept to many disciplines in science.b.The biosphere is a key component of the Earth’s systems because the seasonal cycles directly affect primary productivity.c.The biosphere is a key component of the Earth’s systems because it helps drive the other systems by interacting with and exchanging matter and energy with the other spheres.d.The biosphere is a key component of the Earth’s systems because it has evolved to create the chemical composition of the planet we know today.