Answer:
A. Crust is destroyed at their boundary.
Explanation:
A. Crust is destroyed at their boundary. This statement is accurate. At convergent plate borders, when an oceanic plate is subducting beneath a continental plate, active continental edges are usually encountered. The oceanic crust is destroyed as a result of this process.
B. They generally have Continental rise. This is not true. Because the sediment is either subducted or scraped off onto the overriding plate, active continental edges typically feature a short continental shelf and lack a well-developed continental rise.
C. They don't have a continental break. This is not true. A continental break is present in active continental margins, or the point where the continental shelf changes to the steeper continental slope.
D. Guyot's form at their edge. This is not true. Generally found in the deep ocean basin, guyots are flat-topped seamounts that are not particularly found near the border of active continental edges.
Therefore, the correct answer is A.