Choose the correct option from the following
$I$. Dehydration and dormancy of mature seed are crucial for seed storage.
$II$. Seed of Lupinus arcticus is the oldest one which germinated after $2000 \;year$.
$III$. Orchid seed is one of largest seed in plant Kingdom.
$IV$. Seeds of parasitic plants Orobanche and Striga are tiny seeds.

The plant part which consists of two generations one within the other, is

The cylindrical portion below the cotyledons is … $A$… that terminates to …$B$… and tip called …$C$… $A$, $B$ and $C$ here refers to

In which seeds remnants of nucleus are persistent ? This residual persistent nucleus is the perisperm

Non-albuminous seed