According to cell theory, A)all multicellular organisms are composed of prokaryotic cells.
B)only cells like the eukaryote can carry out the functions of life.
C)single celled organisms like these are only capable of asexual reproduction.
D)even primitive cells, like the prokaryote, can carry out the functions of life.

I believe it is D With the help of my notebook

answer:

convection currents in the magma drive plate tectonics. heat generated from the radioactive decay of elements deep in the interior of the earth creates magma (molten rock) in the aesthenosphere. the aesthenosphere (70 ~ 250 km) is part of the mantle, the middle sphere of the earth that extends to 2900 km.