Which sentence is correctly punctuated?

A. The tools we need to use are: a palm sander, a band saw, and a plane.

B. We need to use the following tools: a palm sander, a band saw, and a plane.

C. A palm sander, a band saw, and a plane: are the tools we need to use.

D. We need to use these tools a palm sander, a band saw, and a plane.

B. We need to use the following tools: a palm sander, a band saw, and a plane.

Explanation:

The punctuation mark that we need to be aware of in the sentences is the colon because it is being used in different ways, but only one sentence uses it correctly.

A colon may be used to introduce an item, a series of items (a list), or an explanatory idea. When it is used that way, it must be preceded by a sentence that expresses a complete thought on its own. Option B is the correct answer because it follows that rule: "We need to use the following tools" is a sentence that expresses a complete thought and can stand alone, and after that sentence, the colon is placed to introduce the list of the tools.

B - We need to use the following tools: a palm sander, a band saw, and a plane.

Colon's are used before a list. B is correct because it states that we need tools - then gives the list of what's needed, seperated by a colon.