A whelk is a carnivore: <span>True whelks are carnivorous, feeding on worms, crustaceans, mussels and other molluscs, drilling holes through shells to gain access to the soft tissues</span>
I would say C. Reduce climate change because taking a car/vehicle results in the earth becoming polluted which leads to climate change.
*EXPLANATION*
Riding your bike or walking will not do anything to help people chopping down trees, people giving birth to more and more children nor will increase the amount of animals/organisms we have on our planet.
Sunlight (it is used by zooplankton which are the bases of all life in the marine ecosystem)
