Identify the segment that contains a grammatical error. If there is no error, select 'No error.'
In the afternoon we walk in the Parks; / and I wondered who shod all the horses there, / and wished Joe did.

Correct option is B

Option (b) contains an error.
Explanation: The word "Parks" is incorrectly used in the plural form. Since the sentence refers to a habitual activity of walking in one park, the singular form "park" should be used instead. Unless referring to multiple specific parks, it is more common to use "park" in the singular form when talking about general activities.
Grammatical rule used:
When discussing a general activity like walking in a park, a singular noun should be used unless there is a specific reference to multiple parks. Common nouns are singular unless the plural is explicitly needed.
Example:
Incorrect: We walk in the parks every evening.
Correct: We walk in the park every evening.
Corrected sentence: In the afternoon we walk in the park; and I wondered who shod all the horses there, and wished Joe did.