Answer:
The sentence that contains a gerund is the first option, letter A. In sentence A the word fishing acts as a verb, but at the same time it can acts as a noun. Present participles do not act as nouns. Instead, they act as modifiers or complete progressive verbs. To find gerunds in sentences, just look for a verb + ing that is used as a noun. that is why SENTENCE A the word FISHING IS A VERB THAT ACTS AS A NOUN.
Explanation:
Sally is fishing on the lake with her father and brothers contains a gerund
A. Sally is fishing on the lake with her father and brothers.
Explanation:
A gerund are words that are formed with verbs but act as noun. Gerund is a verb with an ""ing"" stuck to its tail which also sounds like a noun for example Sarah Singing.
In these sentences Sally is fishing on the lake with her father and brothers. Here Fishing is a verb but also acts like a noun here. There its a Gerund.
