Final answer:
The correct answer to the question about the underlined section is option B, as it correctly depicts what the student's great-grandmother couldn't do—in this case, select rugs and carpets at the shopping center.
Step-by-step explanation:
The question focuses on identifying a potential mistake in an underlined sentence regarding how it is written. If we look at the options provided, we see that option A) 'Correct as is' implies there is no mistake, while the rest of the options,
B) 'Our great-grandmother couldn’t go to the shopping center and select what she wanted as to rugs and carpets.', C) 'Our great-grandmother couldn’t go to the shopping center and did select what she wanted as to rugs and carpets.', and D) 'Our great-grandmother couldn’t go to the shopping center and was selecting what she wanted as to rugs and carpets.' present alternative ways the sentence could be structured.
Option B is the correct choice because it repairs the sentence to have the intended meaning. The phrase 'and select what she wanted' correctly follows 'couldn’t go to the shopping center,' displaying the inability to perform the action of selection.
The use of 'as to' is a bit archaic or formal, but not grammatically incorrect. It could mean 'regarding' or 'concerning' in this context. Options C and D add past or continuous tenses that are not necessary and create awkwardness in the sentence construction.