After an exhausting all-nighter to finish proffessor clark’s research paper, we found his dull lecture the next morning

The statement for the column b is cells

Allusion and illusion. an allusion is an indirect reference, whereas an illusion is something that is unreal or incorrect. each of the nouns has a related verb form: allude “to refer indirectly to,” and illude (not a very common word), which may mean “to delude or deceive” or “to subject to an illusion.”