Rank the perspectives of language development in order of importance. Explain why you feel your first choice is the most important.

Answer 1

What are the "perspectives of language development"? You can't rank them until you know what they are.

Then notice that the second instruction is to explain "why you feel your first choice..." <~~ you -- not the rest of us.

Once you figure this out and write it all up, be sure to re-post if you'd like someone here to go over it for you.

Answer 2

Please list the perspectives of language development as explained in your text materials.

We'll be glad to help you when we know just which specific perspectives you've studied.