A narrow, strategically significant area where trade could be easily blocked or controlled.AShatter PointBChoke PointCPivot PointDNarrow Point

The term you are looking for is Choke Point.

Explanation:

1. Definition: A choke point is a geographical feature that impedes movement or access. In the context of trade and military operations, it refers to specific locations where transportation routes are significantly narrowed, making it easier to control or block the flow of goods, services, or military forces.

2. Significance: Choke points are critical because they can be used strategically during conflicts. Control over these areas can provide significant leverage over trade routes and military movements. For example, controlling a choke point in maritime trade can disrupt the supply chains of entire regions, leading to economic and logistical challenges.

3. Examples: Well-known examples of choke points include the Strait of Hormuz, which is vital for oil transportation, and the Panama Canal, which is crucial for maritime trade between the Pacific and Atlantic Oceans.

Therefore, a choke point plays a crucial role in both military strategy and global trade dynamics by influencing economics, security, and international relations.