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Difficulty: MediumCommas with Lists, Clauses, and Coordinate Adjectives

While surveying the urban forest, the ecologist recorded the growth of resilient, towering oak trees, compiled detailed notes on local wildlife, and submitted her findings to the municipal planning board. Which choice best maintains standard written English conventions for the underlined portion?

  1. NO CHANGEAnswer
  2. B
    resilient, towering oak trees; compiled detailed notes on local wildlife, and submitted
  3. C
    resilient towering oak trees, compiled detailed notes on local wildlife, and, submitted
  4. D
    resilient, towering oak trees, she compiled detailed notes on local wildlife, and submitted

Answer

The original phrasing should be kept unchanged because it correctly uses a comma between coordinate adjectives ('resilient, towering') and properly uses serial commas to separate the three parallel verb phrases ('recorded...', 'compiled...', 'and submitted...').
The original sentence correctly applies comma rules for both coordinate adjectives and series punctuation. 'Resilient' and 'towering' independently modify 'oak trees', requiring a comma between them. Furthermore, the three actions performed by the ecologist ('recorded...', 'compiled...', 'and submitted...') form a parallel list of three items, which are properly separated by commas.

Step-by-Step Solution

1
Evaluate the adjectives preceding the noun 'oak trees'.
The adjectives 'resilient' and 'towering' are coordinate adjectives because they can be joined by 'and' ('resilient and towering oak trees') without changing the meaning.
Coordinate adjectives require a comma between them.
2
Identify the structure of the series/list in the sentence.
The subject 'the ecologist' performs three parallel actions: (1) recorded the growth..., (2) compiled detailed notes..., and (3) submitted her findings...
Items in a series of three or more elements must be separated by commas, including an Oxford comma before the final conjunction 'and'.
3
Check the options for correct punctuation compliance.
The original text ('NO CHANGE') correctly satisfies both the coordinate adjective comma rule and the series punctuation rule.
No punctuation modification is needed.

Key Concept

Commas with Coordinate Adjectives and Parallel Series
Estimated Time:45s
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Topics

Commas with Lists, Clauses, and Coordinate Adjectives

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