Final answer:
Option 3: The gerund phrase 'fishing for trout and bass' acts as a subject complement in the sentence 'His favorite pastime is fishing for trout and bass.'
Step-by-step explanation:
The gerund in the sentence 'His favorite pastime is fishing for trout and bass.' is 'fishing for trout and bass' which acts as a subject complement. The sentence describes what his favorite pastime is, and the phrase answers the question 'What is it?'.
A gerund phrase functions in the same way that a noun would function in a sentence. In this example, the gerund phrase is the answer to what his favorite pastime is, making it a subject complement rather than the subject or object.
This aligns with the definition that a gerund is any verb ending in -ing that functions as a noun, and when it has modifiers like 'for trout and bass,' it is described as a gerund phrase.
The gerund in the sentence 'His favorite pastime is fishing for trout and bass.' is fishing, and it acts as the subject. A gerund is an -ing verb that functions as a noun. In this sentence, 'fishing' is the main activity that the subject enjoys, so it acts as the subject of the sentence.