Which hormone causes lengthening in plants by stimulating cell division and elongation along the long axis of stems and other organs?

A) auxin
B) cytokinin
C) ethylene
D) gibberellin
E) abscisic acid

Elongation

The process of lengthening or stretching something, commonly referring to the lengthening of molecular chains or the physical body structure.

Axis

A line or reference around which something rotates or is symmetrically arranged, often used in geometry and physics to describe orientation.

Hormone

A naturally occurring compound in the body that directs and controls the operation of specific cells or organs.