Answer:
The correct answer is: The fallacy of composition.
Step-by-step explanation:
The fallacy of composition refers to the usually mistaken idea that an individual has in which because a component of a whole is a certain way, the whole is that very certain way, too. The fallacy of composition is a simplified, subjective generalization that individuals come up with where there is not enough proof that the statement being provided is real.
Thus, as George believes Lillian is arrogant because she is part of the LGP groups and George has met previous LGP members who are arrogant, he is assuming all LGP members are arrogant. George has fallen into the composition fallacy.