Quote:
Almost all arguments against the theory of evolution stem from the fact that it is very difficult to prove how a group of non living elements can combine together and give rise to life. However, just because something cannot be proved with certainty today doesn't mean that the possibility isn't there. Remember, there was a time when almost the whole world believed that the Earth was the centre of the universe until Galileo came by and proved otherwise
The key to the solution of the question is the very first sentence. The rest is only an example to sustain what is said in the red part highlighted.
As such, D is the trap obvious answer.
Here, the main point is that is DIFFICULT to prove something. Unless you ascertain it with concrete clues or empirical evidences you can not say with certainty that the theory of evolution or any other theory does not exist or vice-versa.
Hope this helps.
regards