The correct answer of the given question above would be option 1. The best definition of a connotation would be the shades of meaning behind the dictionary definition. In contrast to denotation, which is the dictionary meaning, the connotation is the secondary meaning of the word which is generally evoked from emotions or feelings from that word.
what's the Q? also, how does Mary run away, helping, or supporting junior?
2. Word choice and sentence structure help create interesting stories, word choice helps because you can use any words that are similar to the word for example: you can use then but you can also use therefore. Having a large vocabulary means being able to have a vast variety of word choices to pick from.
For a paragraph you can use a plagiarizing grammar check