Answer:
A. continental-oceanic convergent
Step-by-step explanation:
- Convergent boundaries are found in places where two plates move towards each other.
- Continental-oceanic convergent is a type of convergent boundary which is formed if one plate which has an oceanic crust on the top movers toward another plate which has a continental crust on the top.
- In the given scenario the Nazca plate is topped by the oceanic crust whereas the South American plate is topped by continental crust and as they move towards each other continental-oceanic convergent plate boundary is formed.