if the pressure were reduced all the way down from 36.7 PSI and 30.0 ml to 0.5 PSI how big would the container have to be to hold the gas

The correct option is B. A medium refers to a material that are used to create a work of art. Artists use media to create work of art in order to communicate their ideas. Some examples of media are oil paint, tempera, emulsion, water colour, pastel, fresco, acrylic, marble and bronze. For sculpture, there are two types of medium, hard and soft medium.