The answer happens to obviously be letter C and here is why, a connotation is a choice in words in a form of literature that can give a stronger feeling to the sentence. For example instead of saying scary i could say horifying and that would be a stronger, negative connotation of fear, based on the fact that c is the only negative one, "Crowded and sticky."
Answer:
When faced with extreme cold, the dog experiences "a vague but menacing apprehension that subdue(s) it". It wants nothing more than to "burrow under the snow and cuddle its warmth away from the air". When it falls through the ice on the river trail, the dog automatically knows what it must do, and cleans the ice from his feet and legs. It is equipped by nature with a thick coat to protect it, and it can sense what it must do to survive.
The man, on the other hand, must struggle against nature in order to make it. He has to make choices, the most critical of which is his decision to set out into the Klondike despite warnings of danger. The man must rely on his own initiative and employ the trappings of civilization, and he is hindered both by his failure to prepare properly for his journey and his proud refusal to listen to the Old-Timer, the voice of experience. His misjudgements are costly, and the man does not make it out of the wilderness alive.
The point London appears to be making is that man is insignificant in the face of nature, his environment. Man approaches nature as an adversary, and his chances of coming out ahead are questionable. In contrast, the dog is one with nature, and nature takes care of its own.
Showy, because it means that someone is trying to be impressive and show that they are the most important.
When I shook Coach's hand and received my award, I realized that I had not been a burden on my team and that in some way my presence helped them to achieve victory and efficiency in the game. In fact, I had no idea what my contribution was, but my coach stated that my perseverance and confidence in the team was essential for the victory. He stated that even if I did not participate in the games, I helped build the strategy, gave strength and advice to my teammates, cheered intensely in all games and even with my limitations I led the team in an exemplary way. The coach said that my work this season was the most difficult of all and that this made him immensely proud and that was why I needed to be rewarded. I was extremely touched and I could only thank everyone for all the consideration they had for me. I really did not believe that I had done anything great and I felt bad for thinking that I was not helping the team, for that reason, the prize was so important to me and created a memory that I will never forget.