English Grammar — Error Spotting (Parallelism with 'not only ... but also ...') Identify the part that contains a grammatical error. If there is no error, choose 'No error'. Full sentence: We have helped them not only with money but also with new machinery and raw material.

Introduction / Context:
This item evaluates parallelism with the correlative pair "not only ... but also ..." When the preposition appears before "not only," it should be repeated before the "but also" half to maintain parallel structure, which is satisfied here.

Given Data / Assumptions:

• Sentence: "We have helped them not only with money but also with new machinery and raw material."
• Check for balanced, parallel complements after the correlative pair.

Concept / Approach:

Parallelism requires symmetrical grammatical forms on both sides of "not only ... but also ...". The sentence uses "with" before both complements, satisfying the requirement. Coordination "new machinery and raw material" is also balanced.

Step-by-Step Solution:

1) Identify correlative structure: "not only ... but also ...".2) Verify repetition of the preposition "with" on both sides.3) Confirm coordinated noun phrase "new machinery and raw material" is grammatical.4) Conclude that there is no grammatical error.

Verification / Alternative check:

Alternative correct versions include omitting "with" before "not only" and keeping it only before "but also" is less ideal; best practice is symmetry as in the given sentence. Therefore, the original is acceptable.

Why Other Options Are Wrong:

A–D: Each fragment is grammatically sound and part of a correct parallel structure.E: Correct because there is indeed no error.

Common Pitfalls:

Writers sometimes omit the repeated preposition or mix forms (e.g., "not only with money but also providing machinery"), breaking parallelism. Keep the same grammatical form on both sides.

Final Answer:

No error.