The best and most correct answer among the choices provided by your question is the first choice or letter A. Margarines are products <span> made up of fatty acids that are derived from alkenes.
</span>The main ingredients in most margarines are vegetable oils like soybean or safflower oil.Vegetable oils<span> are mostly unsaturated, which is a problem because unsaturated oils are liquid at room temperature and cannot be used as spreads.
</span>
I hope my answer has come to your help. Thank you for posting your question here in Brainly.
Chemosynthesis, I believe. Bacteria at the bottom of the ocean use this process for food.
Answer:
I believe the answer is Temperature.