The following sentence has been split into four segments. Identify the segment that contains a grammatical error.
After the concert was over, / they go to a restaurant, / had dinner together / and talked until midnight.

Correct option is B

Option (b) contains an error.
· Error: “They go to a restaurant” is incorrect as it uses the present tense "go" while the rest of the sentence is in the past tense.
· Correction: The correct phrase is “they went to a restaurant.”
· Grammatical rule used: Maintain consistent tense throughout a sentence to ensure proper structure and meaning.
· Example: After the game ended, they went home and rested.
Explanation of other options:
· (a): Grammatically correct as it uses the past tense "had dinner."
· (c): Correct as it sets the past context with "was over."
· (d): Correct as "talked" aligns with the past tense.