The correct answer is option 1: Cire. A fluvial landform refers to any landform or feature that is created or shaped by the action of a river or stream. It includes various features such as river valleys, meanders, floodplains, deltas, and waterfalls, among others.

Option 2, Gorge, is a fluvial landform. It refers to a narrow, steep-sided valley that is usually formed by the erosion of a river or stream over a long period of time. Gorges are commonly found in mountainous areas.

Option 3, Braids, is also a fluvial landform. It refers to a river channel that divides and recombines into multiple smaller channels, creating a braided appearance. This typically occurs when a river carries a high sediment load, leading to the formation of numerous shallow channels.

Option 4, Canyon, is another fluvial landform. It refers to a deep, narrow valley with steep sides, usually formed by the erosion of a river or stream over thousands or millions of years.

Therefore, the correct answer is option 1, Cire, as it is not a recognized fluvial landform.