Answer:
The correct answer would be A. crust.
The crust is the outermost layer of the earth which is composed of different types of rocks such as sedimentary, metamorphic, and igneous rocks.
It is completely solid and can be broadly classified into two types: continental crust and oceanic crust.
The thickness of the oceanic crust is about 5 km to 10 km. It is primarily composed of basalt, gabbro, and diabase.
The thickness of the continental crust is around 30 km to 50 km.
The crust forms lithosphere along with hard and upper mantle.
roots
mitochondria
stems
leaves
The right answer is roots, stems and leaves.
Mitochondria and chloroplasts are not organs but organelles.
Plants, although of very varied morphologies, have in common (with the exception of a few rare groups) of possessing differentiated organs: a stem bearing itself leaves and buds, and for most of them, roots. These organs are themselves made of tissues, organized sets of specialized cells. Among the smaller plants are the mosses, whose leafy stem, a few millimeters to a few centimeters in height, is anchored to the ground by filaments. They have neither roots nor conductive tissues.