The correct answer is <span>A. His real life is so different from his dream.
Paul is having difficulties with understanding that lives are sometimes not what we perceive in dreams.</span>
The choice that best describes the sentence and explains how to improve it is: This sentence is complete and correct. It does not need any revision. The sentence above is an example of a complex sentence; it contains both an independent clause and a dependent or subordinate clause. The subordinate clause is introduced by the subordinating conjunction "after". After the comma, the independent clause follows to complete the whole thought of the sentence.
<span>The three equivalent ratios are:
6/10
9/15
12/20</span>
