Answer:
A. convergent
Step-by-step explanation:
"Tectonic plates" are very important when it comes to studying the Earth. It moves in different directions every year. There are particularly three types of movements or plate boundaries (convergent, divergent and transform).
When the tectonic plates move away from each other, it is called "divergent." When they move towards each other, it is called "convergent," just like what the teacher demonstrated above. Pushing the two pieces of clay together means she's showing the movement of the tectonic plates towards each other. When the plates slide past each other, it is called "transform."