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Sentence Correction: Subject Verb Agreement - A Complex Subject/Long Distance between Subject and Verb

A recently published report suggests that forensic fingerprint evaluation, used together with blood splatter patterns and tool marks, are not nearly as reliable as DNA analysis is.

This answer choice is grammatically incorrect. The singular subject evaluation does not agree with the plural verb are.

What helps us identify this question as a Subject Verb Agreement question as well as identify the mistake is the following Stop Sign:

A long complex subject / a long distance between the subject and the verb

Although this answer choice corrects the original Subject Verb Agreement error by replacing are with is, it is stylistically flawed as it omits the verb is from the second half of the Comparative structure. 

Since there's another answer choice that corrects the original mistake but preserves the verb is, it is preferable to this one. Look for it!

Although this answer choice corrects the original Subject Verb Agreement error by replacing are with is, it is illogical and grammatically incorrect. As cannot be complemented by than because as indicates a similarity or equality between the two things compared whereas than indicates a difference between them. 

What helps us identify this question as a Comparative question as well as identify the mistake is the following Stop Sign:

Like, unlike, than, as

Although this answer choice corrects the original Subject Verb Agreement error by replacing are with is, it creates redundancy by using the phrase or even close to it instead of the more concise nearly.

Great work!

This answer choice correctly matches the singular verb is with the singular subject forensic fingerprint evaluation.

recently published report suggests that forensic fingerprint evaluation, used together with blood splatter patterns and tool marks, are not nearly as reliable as DNA analysis is
report published recently suggests that forensic fingerprint evaluation, used together with blood splatter patterns and tool marks, is not nearly as reliable as DNA analysis
recently published report suggests that forensic fingerprint evaluation, used together with tool marks and blood splatter patterns, is not as reliable as DNA analysis is, or even close to it
recently published report suggests that forensic fingerprint evaluation, used together with blood splatter patterns and tool marks, is not nearly as reliable as DNA analysis is
recently published report suggests that, used together with blood splatter patterns and tool marks, forensic fingerprint evaluation is not nearly as reliable than DNA analysis is