The correct options are
A Sand
B Clay
C Rocks
The rivers bring sediments like silt, sand, clay, and gravel along with them while they are coming down from mountains. These are called alluvial deposits. The rivers in the Khadar and Bhangar region flood almost every year and deposit all these sediments in the plain regions and make the plains fertile. Aquatic life will be present in rivers but they are not a form of sediment.