Please help!
Natalie works at a store where she must choose 1 item from each of the following options: a sweater or a blouse; a brown pair of pants, a black pair of pants, or a skirt; and a pair of sandals or boots.

The following tree diagram shows the possible work uniforms.

What is the probability of randomly selecting an outfit that includes a blouse, skirt, and sandals?

Enter your answer as a reduced fraction, like this: 3/14