Answer: but, however, in spite of, on the other hand, nevertheless, nonetheless, in contrast, on the contrary, still, yet AND first, second, third, next, then, finally
Explanation: These are some good transition words to put with your sentences. If your writing about a topic with 3 points, you can start the paragraph off with "first, second", ect. If your wanting to transition into something different, then use some words such as "but, however, in contrary", ect. It all depends on what your writing about and what type of essay your writing so make sure you use them appropriately.
B. It helps to narrow the topic.
A character who drives most of the action in a story is the protagonist. The protagonist is the main character of a story and he/she drives most of the action in a story.
An existentialist is basically a person who incorporates the principles of existentialism. By definition, existentialism is defined as a certain kind of philosophy wherein the "existence" of an individual is highly emphasised in which he or she has this ability to act according to what is in his or her will, which was represented by Meursault in the story.