I think the answer is B. srry if its wrong
:)
Okay. I cannot see the article, again but will try my hardest to answer this anyway.
The purpose can usually be seen in the first sentence or paragraph (unless you have an excerpt). Though it may not be too specific it will usually be backed up by evidence later in the passage. A purpose can always be proven by text details.
Choice of details: should support the purpose
organization: Some things are good for some purposes.
e.g. cause effect, shows the good or bad effects of a purpose. The author can support the purpose or no.
chronological can show how something has changed over time.
etc.
Try to identify the main structure and how the passage is organized and how it supports the main idea.
I can write a paragraph about Martin Luther King
Answer:
D. Fossils of early tetrapods have many features that are very different than whales of today
Explanation:
I would say this is the correct answer because it pertains to the fossil record providing proof that the tetrapods evolved from whales. This explains why they are very different than whales nowadays despite the fact that they have a shared ancestor. The answer you have chosen is too vague.