Can someone help me with this bio question plss

it says that plants are the main source of nutrients and energetic materials and when the cow feed on them, it consumes some of the benefits that we miss when we eat beef

Question 6: The answer is the energy, because it collects more energy than the cow. When the cow eats plants, the energy from the plant decreases leaving the cow with only little amount.

answer; i believe the correct answer is (a)0

satellites are frequently used to make observations of the orbit on earth