What is the main function of signal words? a: they predict the main ideas b: they suggest that the author is not an expert c: they alert the reader that the article is about to end d: they indicate that information is from a reliable source plz

Select the correct answer from each drop-down menu. read the following excerpt from the novel "oliver twist" by charles dickens. although oliver had been brought up by philosophers, he was not theoretically acquainted with the beautiful axiom that self-preservation is the first law of nature. if he had been, perhaps he would have been prepared for this. not being prepared, however, it alarmed him the more; so away he went