The correct option is A A - III, B - II, C - I, D - IV
Corm is a type of unbranched, swollen underground stem having circular nodes that have buds for the growth of daughter plants. It is found in Colocasia.
Runners are narrow creeping horizontal stems with long internodes. Their nodes also bear axillary buds. They are found in lawn grass i.e. Cynodon.
Offset is a type of sub-aerial stem. It originates from the leaf axil and runs horizontally, bearing a rosette of leaves above and adventitious roots below its tips. It is found in Eichhornia.
Sucker is a type of underground stem that grows horizontally below the soil for some time and then comes above the soil and produces aerial shoots. It is found in Mint.