Final answer:
The question cannot be answered without the specific sentence in question; it is asking to identify a specific grammatical construction, but the sentence is not provided in the query.
Step-by-step explanation:
The student's question does not provide a sentence that could contain a nominal clause, gerund phrase, nominal infinitive phrase, or none of the above. Without the actual sentence in question, it is impossible to determine which option is correct. Therefore, this answer can't be provided without the relevant sentence for analysis.
A nominal clause functions as a noun within a larger sentence. A gerund phrase includes a verb ending in -ing that functions as a noun, and a nominal infinitive phrase is an infinitive that acts as a noun within the sentence. Without the specific sentence to analyze, we cannot identify which, if any, of these elements are present.