The correct option is C offset
Offset is part of branch or stem by which a plant can reproduce asexually and a new daughter plant is formed. Offset are the means of vegetative reproduction in plants. These are clones and genetically identical to the plants. These are produced by the mitotic division of the main stem of the plant. For example - Eichhornia.
A creeping horizontal plant stem or runner that takes root at points along its length to form new plants.
Runner is a fast growing stem that grows on the surface of the soil. They develop into a new plant.
Suckers are the short underground stem branches that arise from the base of an aerial stem. These branches can grow aerially and develop adventitious roots and new suckers at their bases.
Hence, Eichhornia is the example of offset.