The hilly terrain of Manipur leads to many rivers having a:

The correct answer is: Fast-flowing character.

The hilly terrain of Manipur leads to many rivers having a fast-flowing character. This is because the rivers have to flow downhill over a steep gradient. The fast-flowing rivers are often turbulent and can cause erosion.

The other options are incorrect because:

• Meandering course: This is a type of river course where the river flows in a series of curves. This type of course is more common in flat areas.
• Braided pattern: This is a type of river course where the river divides into multiple channels. This type of course is more common in areas with loose sediment.
• Seasonal flow: This is a type of river flow where the river only flows during certain times of the year. This type of flow is more common in areas with a dry climate.