What type of stream valley forms in mountainous areas?

a narrow V-shaped valley

a wide, flat valley

an oxbow lake valley

a floodplain

a narrow V-shaped valley

Explanation:

The type of the stream valleys formed in the mountains depends on the process of the flow of water as such the valleys that are formed are that of the V and U shaped forms and V-shaped valleys are usually found in the hills and the valleys pf the mountain ranges as these areas are affected by glaciers that make a U shaped flat valley bottom.