Which part of the plant develops into the primary root?

A.) Root tip

B.) Radicle

C.) Root hair

The primary root which develops from a radicle and becomes dominant belongs to the taproot system, example is the carrot. Roots that develop from other roots are generally called lateral roots; those that arise from other plant organs rather than the root, such as from stems or leaves, are called adventitious roots

The correct answer is B. Radicle

Root tips exist to create a sense of gravity in plants which is why they know in which direction to grow, while root hairs absorb nutrients.