We couldn't buy anything because ______ of the shops were open.

A). All
B). no one
C). nothing
D). none

1. "None" is used when referring to "not any" of a group.
2. "All" would mean every shop was open, which contradicts the sentence.
3. "No one" refers to people, not shops.
4. "Nothing" is incorrect grammatically in this context.

B

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