Final answer:
The correct option is any of them: 1, 2, 3, or 4. All provided sentences 1, 2, 3, and 4 contain the infinitive phrase 'to fish.' Since the question asks which sentence has the words in bold as an infinitive, the answer includes all options because 'to fish' functions as the object of the verb 'wants' in each sentence.
Step-by-step explanation:
The student has asked which sentence contains the words in bold as an infinitive. An infinitive phrase typically consists of the word to followed by the base form of a verb. In the provided options for the sentence 'Jason wants to fish early at the lake,' irrespective of the additional details about the lake or the omission of them, the phrase 'to fish' is an infinitive phrase.
Therefore, it functions in the same way in all sentences provided.
When assessing the function of the infinitive phrase within a sentence, it's essential to note that an infinitive can act as a noun, adjective, or adverb.
An example of an infinitive phrase acting as an adverb is: 'To ensure a full refund, you must also bring your receipt,' where the phrase modifies the verb 'bring.' Similarly, 'To talk about poll numbers at this stage of the election is simply counterproductive,' uses an infinitive phrase as the sentence's subject.
In this case, 'to fish' serves as the object of the verb 'wants,' showing what Jason desires to do, hence answering the student's question, the infinitive phrase is found in all sentences, and the correct option is any of them: 1, 2, 3, or 4.