What is the word for these: 1- is something that can help solve a mystery 2- what does investigators want when they ask a question THX

Read this passage: there were old, half-rotten vegetables; bones from the evening meal, covered in white sauce that had gone hard; a few raisins and almonds; some cheese that gregor had declared inedible two days before; a dry roll and some bread spread with butter and salt. "am i less sensitive than i used to be, then? ", he thought, and was already sucking greedily at the cheese which had immediately, almost compellingly, attracted him much more than the other foods on the newspaper. quickly one after another, his eyes watering with pleasure, he consumed the cheese, the vegetables and the sauce; the fresh foods, on the other hand, he didn't like at all, and even dragged the things he did want to eat a little way away from them because he couldn't stand the smell. kafka, the metamorphosis (david wyllie, trans.) what can you infer about gregor from this excerpt? a. he enjoys disturbing his family by making a lot of noise. b. he is upset at being locked in the room and tries to escape. c. he is becoming less human and more like a bug. d. he is depressed and is trying to hurt himself.

Match the author with the description a. ernest hemingway b. john steinbeck c. robert frost d. langston hughes (1) summers spent in pacific grove, california influenced the symbolism in his literature (2) his poetry includes simple, direct language. many are dramatic monologues written in free verse are about life on new england farms (3) the mood and tone of his literature is largely shaped by his experience as a soldier in world war 1 (4) his poetry and short stories include dialect and colloquialisms which gives his primarily african american characters distinctive voices

Which word best describes the mood in this sentence? lucia was aglow as she bounced into the room with stories about her summer vacation.