A. Could we?
B. Shouldn’t we?
C. Shall not we?
D. None of these
🧠 Explanation:
In “We should abide by the rule, _?” the tag “shouldn’t we” fits for a question tag matching the positive statement. Question tags are key in English for conversation. In Pakistan, they’re used in daily talk or writing to seek agreement, ensuring clear communication in casual or formal settings.
