Which sequence shows the order of energy flow in a food chain ?? Urgent

1.sun — rabbit —-grass— owl
2.grass ,rabbit, owl, sun
3.sun ,grass ,rabbit ,owl
4.owl, rabbit ,grass ,sun

significant amounts of nitrogen oxides, carbon monoxide, and other pollution

explanation:

passenger vehicles are a major pollution contributor, producing significant amounts of nitrogen oxides, carbon monoxide, and other pollution. in 2013, transportation contributed more than half of the carbon monoxide and nitrogen oxides, and almost a quarter of the hydrocarbons emitted into our air.

answer; i believe the correct answer is (sporophyte);