An inner-city youth spends many hours in the neighborhood playground shooting baskets on the basketball court and engaging in every game that he can play. his skills become outstanding, and he receives a college scholarship and then signs a lucrative contract to play in the national basketball association. this is an example of

Vertical mobility

Explanation:

The situation in the given question shows an instance of vertical mobility.

Vertical mobility alludes to an individual or gathering's development up or down a status chain of importance. This is usually alluded to as social versatility, yet vertical portability can likewise allude to any development up or down a chain of command of any sort, not really identified with societal position similarly that social mobility is.