You have not informed which Mark Twain story you are referring to, which makes it impossible to answer your question. However I can help you by showing what a simile is and what its effect is within a story.
A simile is a figure of speech that has the ability to compare two objects, beings or situations, which are very different from each other, but which have a certain similarity that allows this comparison to be made. In other words, we can say that the simile is a comparison of different but analogous elements.
Within a text, the simile is used to extend a meaning and better explain an argument, making the comparison so that the meaning of something is easily perceived and established.
An example of this can be seen in the following sentence, which was written by Mark Twain: "Dan'l give a heave, and hysted up his shoulders so like a Frenchman, but it wan's no use he couldn't budge; he was planted as solid as an anvil, and he couldn't no more stir than if he was anchored out."
The correct option is C.
Human needs refers to those items that are very essential for survival, one can not possibly do without them, if the needs are not met it will lead to negative consequences. Human wants on the other hand refer to those items that we desire whether now or in the future. Human wants differ, it depends on individual's taste. Examples of need are water, food, air and shelter.
In the question given above, water and grocery are needs while cable and cell phone are wants.
The answer is 'my name is nobody' Odysseus gives the giant a false name to trick him for when he goes to get help from the other giants.