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Sentence Correction: Subject Verb Agreement - X of Y Subject

An abundance of sensory stimuli irritate and cause distress to an infant; this is why experts recommend that parents learn about how children develop before choosing the toys and other accessories that they will provide them with.

Incorrect.

An abundance of sensory stimuli is an X of Y subject. In such cases, the verb should agree with X (abundance), which is singular. However, the verbs irritate and cause are plural

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

an X of Y subject

Incorrect.

An abundance of sensory stimuli is an X of Y subject. In such cases, the verb should agree with X (abundance), which is singular. However, the verb cause is plural

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

an X of Y subject

Incorrect.

Although this answer choice corrects the original Subject Verb Agreement error by matching the singular verbs irritates and causes to the singular subject abundance of sensory stimuli, it uses the incorrect preposition after provide them.

The correct idioms with provide are:

To provide someone with something.

To provide for someone.

Incorrect.

Although this answer choice corrects the original Subject Verb Agreement error by matching the singular verbs irritates and causes to the singular subject abundance of sensory stimuli, it uses the incorrect preposition after causes distress. The correct idiom is to cause distress to someone.

Impressive!

This answer choice corrects the original Subject Verb Agreement error by matching the singular verb causes to the singular subject abundance of sensory stimuli.

irritate and cause distress to an infant; this is why experts recommend that parents learn about how children develop before choosing the toys and other accessories that they will provide them with
irritates and causes distress to an infant; this is why experts recommend that parents learn about how children develop before choosing which toys and accessories to provide them for
causes distress and irritation to an infant; this is why experts recommend that parents learn about how children develop before choosing which toys and accessories to provide them with
cause irritation and distress to an infant; this is why experts recommend that parents learn about how children develop before they choose toys and other accessories that they will provide them with
irritates and causes distress for an infant which is why experts recommend that parents learn about how children develop before choosing the toys and other accessories that they will provide them with