Which sentence correctly uses a colon to introduce the list?

The town council decreased funding for parks and recreation, construction, and staff development.

The town council decreased: funding for parks and recreation, construction, and staff development.

The three departments that the town council decreased funding for were: parks and recreation, construction, and staff development.

The town council decreased funding for three departments: parks and recreation, construction, and staff development.

The town council decreased funding for: parks and recreation, construction, and staff development.

The sentence that corretly uses a colon to introduce a list is the following one: The town council decreased funding for three departments: parks and recreation, construction, and staff development.

A colon means "that is to say". One of their uses is to introduce an item or series of items. In this case, the colon introduces the list of departments that the town council has decreased funding for.

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