The edible part of the sweet potato is a modified

Given below are two statements.
$Statement-I$: Root hair is colorless and delicate.
$Statement-II$: Root hair is long-lived and branched.
In light of above statements, select the correct answer from the option given below.

Velamen present in orchids helps in

What is the primary function of root hairs in plants?

Which statement is correct for root hair?

$A$ root is called adventitious when it is