I have a feeling that the answer to your question is letter C.
I hope I have answered it correctly for you.
Answer:
Crabs. Crabs belong to the subphylum Crustacean, the largest group of marine arthropods, which also includes lobster, shrimp, and krill, a shrimp-like crustacean. Crabs move sideways, walking on four pairs of legs, and holding their two legs with claws away from their body.
Answer:
Vain - conceited, too proud (especially of one's looks)
Well, it usually involves some sort of campaign promise. If it connects with the potential voter, it will usually ensure their vote. Take the president of the United States, Donald Trump as an example. He had many campaign promises that he has either fully upheld or partially upheld in his time of office so far. My point is to create meaningful campaign promises and make sure it connects to your audience.