(plate tectonics) HELP PLEASEE ILL GIVE BRAINLIEST

Plate tectonics is the theory that Earth's outer shell is divided into large slabs of solid rock, called “plates,” that glide over Earth's mantle, the rocky inner layer above Earth's core. Earth's solid outer layer, which includes the crust and the uppermost mantle, is called the lithosphere.

answer; i believe that the correct answer is(d) nondisjunction during meiosis;

i think the answer is b.