What does the word irritable mean in this sentence? lack of sleep made the toddler irritable.

How is dr. lanyon characterized in the excerpt? as friendly as arrogant as wise as mournful

Choose the sentence that is not logically connected in the paragraph. (1) one final effect of radio and tv on the language must must be noted. (2) there is no doubt that these great media of information have cut down considerably the time that used to be devoted to reading. (3) radio and tv may enhance the spoken word. (4) they tend to lower comprehension levels.

Which is the corect way to site a quotation in the body of his paper using mla style