Synonym clue, because a Synonym is a word that is exactly like or nearly like another word, if the word trying to be explained is explained by comparing it to another word is is exactly or nearly like it it is a Synonym Clue.
Answer:
i do not remember if algernon was the mouse or the person but
Explanation:
rat- he was able to help out the person
person- he was able to read better and he was able to write better but after the mouse died his ability was going away
i just finished this lesson for class like a 4 months ago