Explanation
1. Analysis of the Sentence:
The sentence contains the phrase "much lesser than 5% more than...".
2. Identifying the Error:
When these two phrases are used together in this specific structure ("lesser than... more than"), they create a logical paradox or a lack of clarity. If the cost is "lesser" than a "more than" value, it doesn't specify a clear range or direction for the final cost. These are conflicting words because they pull the reader's understanding in two opposite directions simultaneously, making the comparison mathematically and logically ambiguous.
3. Comparison with other errors:
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Syntactical error: The arrangement of words follows basic English structure, so it is not primarily a syntax issue.
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Punctuation error: There are no missing commas or periods that change the fundamental meaning.
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Grammatical error: While "lesser" is often misused instead of "less," the core issue here is the logical conflict between the two comparative directions.
Conclusion:
The primary issue is the use of contradictory comparative terms.
Correct Option: (d) conflicting words