The answer is D. Sentence 7. When it says "plates may also collide", it is bringing up another topic about the plates. As you read past sentence 7, you notice a shift in topic as you are reading. Instead of plates sliding against each other, the speaker is now talking about them colliding.
Answer:
Coriander (/ˌkɒriˈændər, ˈkɒriændər/;[1] Coriandrum sativum) is an annual herb in the family Apiaceae. It is also known as Chinese parsley, dhania or cilantro (/sɪˈlæntroʊ, -ˈlɑːn-/).[2] All parts of the plant are edible, but the fresh leaves and the dried seeds (as a spice) are the parts most traditionally used in cooking.
