The correct option that expresses the given sentence in passive voice is:

☀ The marble was rolled through a small plastic pipe by Robin.

So, the correct passive form is: "The marble was rolled through a small plastic pipe by Robin."

The other options and their explanations:

☀ The marble was rolled by Robin in a small plastic pipe.

• This option changes the meaning of the original sentence. It suggests that Robin was rolled inside a small plastic pipe, which is not the intended meaning.

☀ A small plastic pipe was rolled through a marble by Robin.

• This option is not grammatically correct. It reverses the order of the subject and object, making "a small plastic pipe" the subject that is being rolled, and "the marble" becomes the pipe.

☀ The marble through a small plastic pipe was rolled by Robin.

• This option is not grammatically correct. It places "the marble" before the prepositional phrase "through a small plastic pipe," resulting in a confusing and awkward sentence structure.