<p>He was called into the editor's office to answer for his scathing expose, therefore he was infuriated that such excellent investigation would be so summarily dismissed.
A. his scathing expose; therefore, he was infuriated
B. his scathing expose, and was infuriated</p>
<p>Can someone also post an explanation of the reason for the correct answer?</p>
<p>I thought it would be B as well, but it says its A.
IDK why since A doesn’t really make sense (I think there’s no cause to use the “therefore”).</p>
<p>I thought that B sounded better and had more brevity. If the answer is A, I don’t see how because the use of “therefore” sounds like he was infuriated because he was called into the office, but logically, he is infuriated not at being called into the office but at the investigation being canceled.</p>
<p>It’s A because it fixes the error of having just a comma before therefore. Words like thus, therefore, hence, etc should always have a semicolon before them when they appear midsentence. </p>
<p>The only reason B would be wrong would be that the “and” doesn’t do the best job of establishing a concrete relationship between the two actions in the sentence.</p>
<p>Having said this, I haven’t encountered these in CB materials. I’ve only seen them in a certain unnamed prep book…so yeah, this example is kind of irrelavent.</p>
<p>Although the word “AND” appears to be a better way to join the clauses, a comma and a conjunction can only be used to join TWO COMPLETE SENTENCES. Thus, by default, B is INCORRECT.</p>