The following sentence has been divided into parts. One of them may contain an error. Select the part that contains the error.

The manager insisted (A)/ that the reports be submitted (B)/ before noon, as punctuality (C)/ was something he considered to be. (D)/ No error

The correct option is D.

Step-by-step Explanation:

Let's analyze each part of the sentence to find the grammatical error:

1. "The manager insisted" (Part A): This is grammatically correct. The subject "The manager" is paired with the past-tense verb "insisted".

2. "that the reports be submitted" (Part B): This uses the subjunctive mood ("insisted that... be submitted"), which is correct after verbs of demand, insistence, or suggestion.

3. "before noon, as punctuality" (Part C): This part functions correctly as a prepositional phrase ("before noon") followed by a subordinating conjunction ("as") introducing a clause about "punctuality".

4. "was something he considered to be." (Part D): This clause is grammatically incomplete and ends abruptly. The verb phrase "considered to be" requires a complement or object (for example, "was something he considered to be important" or "was something he considered of utmost importance"). Alternatively, the preposition "to be" is redundant and incorrect in this context, leaving the sentence dangling. To make it grammatically sound and complete, it should end with a term representing the quality, or be rephrased as "...was something he highly valued" or "...was something he considered to be essential."

Therefore, the error lies in part D.