It's D your choice as commas, split an explanation while the conjunction 'but' links two sentences. No need to separate them by using a semicolon.
Answer:
chick
Explanation:
The term "chick" is the most common, and can describe any baby bird of any species from the moment it hatches until it leaves the nest.
<span>To find the perimeter of a hexagon you need to know the number of sides in the hexagon which is 6, then to find the perimeter you multiply the side length by the number of all 6 sides</span>
