The correct answer to the question is: B
Judging by the word choice from the quotation "Bushnell was hooked and he would sneak into the computer lab late at night to play." it could be deduced that the meaning of the phrase is negative.
Hooked means enjoy something so much that a person is unable to stop doing it.
Sneak means go somewhere secretly, keep something in secret.
Both of these verbs have negative connotation.