Final answer:
The location where the Greasers sit at the drive-in cannot be determined from the provided information. The reference given does not clearly answer the question, and further context from the novel, potentially 'The Outsiders', is required to provide a factual answer. thus, the correct option is 2).
Step-by-step explanation:
The question pertains to the location where the Greasers sit at the drive-in in the context of a novel or a story. The provided reference talks about seats being in the fourth row, but it does not directly answer where the Greasers sit at the drive-in.
Unfortunately, without the specific context from the novel or story in question, which I believe might be 'The Outsiders' by S.E. Hinton, it is impossible to provide an accurate answer.
To find the correct answer, one should refer to the text of the novel where the drive-in scene is described.