Final answer:
The colon in the mentioned sentence functions to introduce a list of items that the team needs to find to win the scavenger hunt. This use of the colon follows after an independent clause to provide additional details, which can include lists, quotations, or explanations. The correct option is 3.
Step-by-step explanation:
The function of the colon in the sentence 'The team needed to find three more items to win the scavenger hunt: a picture of a clown, a fish in an aquarium, and a person wearing overalls' is to introduce a list of items.
This punctuation mark is commonly used after an independent clause to provide further details, such as a list, quotation, or explanation.
Example sentences that demonstrate the use of a colon include:
- Julie went to the store for some groceries: milk, bread, coffee, and cheese.
- Successful athletes have the following qualities: physical ability, mental toughness, commitment, and optimism.
In the context of the given sentence, the colon announces that the independent clause about the team's requirements to win the scavenger hunt will be explained in more detail with a specific list of items needed. The correct option is 3.