D is the answer because the rest ate observations
Answer:
C. Angiosperms and Conifers
<em><u>Angiosperms:</u></em>
<em>A plant that has flowers and produces seeds enclosed within a carpel. The angiosperms are a large group and include herbaceous plants, shrubs, grasses, and most trees.</em>
<u><em>Conifers:</em></u>
<em>A tree that bears cones and needle-like or scale-like leaves that are typically evergreen. Conifers are of major importance as the source of softwood, and also supply resins and turpentine.</em>
Hope this helps you out! Took some time to do this, maybe a brainliest? Sorry for asking! Have a good day!!
In order for natural selection to take place we must have "variety in a population". This variety of traits is what allows natural selection to "pick" the most favorable traits.