Difficulty: Medium

Average Score: 61%

Which of the following sentences is grammatically correct?

Rationale

Because the patient could walk, he was allowed to leave his room.

This sentence is complete and correctly structured, providing a clear cause-and-effect relationship between the patient's ability to walk and the consequent action of leaving his room. It uses a dependent clause followed by an independent clause, effectively conveying a complete thought.

A (The patient and the nurse knew he could walk.) YOUR ANSWER

This sentence is grammatically correct; however, it is ambiguous because "he" could refer to either the patient or the nurse. Without additional context, the pronoun does not clearly indicate who is being referred to, leading to confusion.

B (While the patient was walking.) YOUR ANSWER

This is a sentence fragment and not a complete thought. It begins with the subordinating conjunction "while," indicating that there is additional information expected to follow. As it stands, it does not express a complete idea.

C (The patient, the nurse, and the doctor were walking.) YOUR ANSWER

Although this sentence is grammatically correct, it lacks context or a specific action or consequence related to the walking. As such, it does not convey a complete situation or meaning that relates to the other options.

Conclusion

The only complete and contextually clear sentence among the options is "Because the patient could walk, he was allowed to leave his room." This sentence effectively communicates both a condition and a result, making it the only grammatically correct option that expresses a full idea. The other choices either suffer from ambiguity, incompleteness, or lack of relevance to the intended context.

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