What occurred in the market for foil boards after a video featuring Kai Lenny went viral in 2016?

After the video featuring Kai Lenny went viral in 2016, the market for foil boards experienced a significant increase in demand. This can be attributed to the heightened visibility and popularity of foil boarding that the video brought, capturing the attention of potential new customers who were inspired to try this water sport. As a result, many people became interested in purchasing foil boards, causing the demand curve to shift to the right.

When demand shifts to the right, it means that at every price level, consumers are willing to purchase more of the product than they were before the viral video. This shift generally leads to higher prices and increased sales volume, as suppliers will respond to the surge in consumer interest. The other choices do not capture this phenomenon; for instance, a decrease in demand would imply that fewer people want the product, and an increase in supply would suggest that producers are making more of the product available without any change in demand. Therefore, the correct answer reflects the direct impact that the viral video had on the desirability and popularity of foil boards in the market.