Stem modified into green, flattened branches of unlimited growth for assimilatory function is

Assertion : Many plants are propagated vegetatively even though they bear seeds.
Reason : Potatoes multiply by tubers, apple by cutting etc.

Multicellular hairs are found on

Underground stems of potato, ginger; turmeric, Zaminkand, Colocasia are the examples of modified stem for

Assertion : Ginger has a prostrate growing rhizome.
Reason : Shoot growth is not effected by gravity

Which is not a rhizome