Fact 1: Plants release oxygen during the day but not during the night.

Fact 2: All orange trees are plants.

Given the two facts above, answer the question "What release oxygen during the day but not at night?" with the following options: 
- sea anenomes
 - Organic compounds
 - orange trees
 - coral
 - power stations
 - humans
 - swamp vegetation
 - important habitats


 

   orange trees      