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Writing Mistakes

GMAT-UXNQPY

Mr. Smith, a local high school English teacher, has noticed an exorbitant number of grammatical mistakes in his students’ writing. Accordingly, Mr. Smith believes that additional lessons in vocabulary accumulation will lower the number of mistakes in his students' writing.

Which of the following, if true, MOST weakens his logic?

A

Most grammatical mistakes in high school students’ writing involve spelling errors.

B

Mastery of grammar in student writing is not the same as mastery on a grammatical test.

C

Grammatical mistakes include more than vocabulary errors.

D

The mistakes made by Mr. Smith’s students may not be indicative of all students at the school.

E

Vocabulary accumulation is the crux of grammatical competency.