Final answer:
Nathaniel is employed as a park ranger, which is option 1 in the question provided.
Step-by-step explanation:
In the summary of Chapter 1, Nathaniel, the father in the Bakers' family, is employed as a park ranger. He is described as someone who loves junk food, contrasting the healthy lifestyle embraced by his wife, Martha, who works as a museum historian. Therefore, the correct answer to the question of Nathaniel's occupation is 1) Park ranger.