What type of error is in the sentence using "Nicole was feeling tired"?

The correct choice indicates that there is no error in the sentence "Nicole was feeling tired." This sentence is a complete thought and correctly structured, containing a subject ("Nicole") and a verb ("was feeling") with a clear predicate. Since it expresses a straightforward idea without any grammatical mistakes or punctuation issues, it does not exhibit a comma splice, which occurs when two independent clauses are joined with a comma without a coordinating conjunction. Since the provided sentence does not have multiple independent clauses nor any incorrect punctuation, the assessment that it has a comma splice is inaccurate. Hence, the choice that indicates no error aligns perfectly with the structure and clarity of the sentence.