Let's look through the answer choices to see if we can find support for them in the text. The question stem asks us for an inference, meaning we may not find it written explicitly in the passage.
A. You acknowledged that this is the correct answer. We do have very strong support to make this inference. Line 31: "For various reasons, Chinese immigrants remained sojourners..." which suggests that they started as sojourners. Line 35: "Japanese immigrants, on the other hand, were less constrained, made the transition from sojourner to settler..." This gives us the information we needed about both groups.
B. I don't see a part of the passage that allows us to infer this. In fact, the very first sentence of the passage seeks to explain the "socioeconomic achievement" of the Chinese and Japanese immigrants. That sounds like the opposite of slow accumulation of capital.
C. The final paragraph discusses the market conditions that the immigrants had to deal with. The demand for low-wage labor is what first brought these immigrants. They were not managers, but they did make a foundation for their descendants' success.
D. See line 31. The Chinese did not rapidly establish nuclear families.
E. This is similar to answer choice C. The immigrants did not necessarily acquire technical skills, but they made sure their children were educated.
