I would say the best answer is B. Asking the learner to begin working on a problem.
Answer:
When tectonic plates under the Earth's surface shift, they create space between them. Hot rock under these plates then rises to occupy the space. As the rock rises, the pressure placed on the rock decreases and causes the rock to melt
Explanation:
The endometrium!
The functional layer of the endometrium thickens in preparation for inception and implantation of the fertilized egg.