It looks perfectly fine the answer is well said and has supporting sentences to prove your statement. Wording is a little of where you said "but shows even more in the second half." It's not that big of a deal but just kind of rolls of the tongue weirdly not a necessary change but just thought I'd point it out.
Answer: C
Explanation: now with the central message its hard to find a exact definition so it could be either b or c but the reason I chose c is because its basically b but with more details