i would say C as the correct answer. i hope its right.
"the book that I liked best" is the complete subject clause because it replaces the subject (the proof is that it agrees with the verb was). The adjectival clause is then "the one about the big fish" because it describes the subject in more detail (which is always the function of the adjective).
Answer: He is worried and he has a intense face.
Explanation:
I could not find the rest of your question that is missing but I have found the answer on the internet that had the most acceptance of people that were looking for the same answer as you do.
In that answer, it says that the man from the section is feeling anxious and intense and that the other could see that on his face so his gestures are showing that he is obviously worried about the upcoming moment.
Also, you can check on it by feeling the tone of the section while you are reading the situation between the sports announcers and the hitter.
