Which statement best describes the relationship between plants and animals on earth? – Nursing School Essays

Which statement best describes the relationship between plants and animals on earth?
a) Plants produce O2 and sugars from CO2b) Animals produce CO2 and H2O from sugars and O2c) Plants produce O2 and sugars and animals produce CO2 and H2Od) Animals produce O2 and sugars and plants produce CO2 and H2