From the adventures of tom sawyer by mark twain as he was passing by the house where jeff thatcher lived, he saw a new girl in the garden—a lovely little blue-eyed creature with yellow hair plaited into two long-tails, white summer frock and embroidered pan-talettes. the fresh-crowned hero fell without firing a shot. a certain amy lawrence vanished out of his heart and left not even a memory of herself behind. he had thought he loved her to distraction; he had regarded his passion as adoration; and behold it was only a poor little evanescent partiality. he had been months winning her; she had confessed hardly a week ago; he had been the happiest and the proudest boy in the world only seven short days, and here in one instant of time she had gone out of his heart like a casual stranger whose visit is done.

identify the word that best describes tom sawyer as he is depicted in this excerpt.

a. preoccupied
b. concerned
c. impulsive
d. horrified