Rashawn's elbow was broken while dancing. The emergency room physician puts his arm in a cast and also recommends that Rashawn buy a sling from a nearby pharmacy, which will help support the cast and make it more comfortable. In this scenario, which of the following is true? The sling is an output, specifically capital. The sling is an input, specifically capital. The sling is an output, specifically a good. The sling is an output, specifically a service