Error Spotting – Choose the part (A–D) that contains the grammatical error, or choose No error if the sentence is fully correct. Sentence (parts correspond to options below): A) Every animal in the zoo B) is fed regularly C) and attended to D) very promptly.

Introduction / Context:
This question checks coordination of passive verb phrases sharing the same auxiliary. English allows a single auxiliary to control multiple past participles in coordinated structures.

Given Data / Assumptions:

• Auxiliary: is
• Participles: fed, attended (both past participles in passive)
• Coordinating conjunction: and

Concept / Approach:
When two passive predicates share the same subject and auxiliary, the auxiliary be is not repeated before the second participle if parallelism is clear: is fed regularly and attended to promptly.

Step-by-Step Solution:

Verification / Alternative check:
Expanding yields is fed regularly and is attended to very promptly, which is also correct but unnecessarily repetitive. The compact form used here is fully acceptable.

Why Other Options Are Wrong:
They are not wrong; each segment is grammatical and idiomatic.

Common Pitfalls:
Learners sometimes repeat the auxiliary or mislabel attended to as an active form. It is a fixed transitive-prepositional verb whose passive past participle is attended to.

Final Answer:
No error.