You need to create a cluster of pushpins for a large dataset that takes the least amount of time to load on a Virtual Earth 6.0 map. Which two actions should you perform? (Each correct answer presents part of the solution. Choose two.)

A.
Start clustering by using the VEMap.onendzoom event.

B.
Start clustering by using the VEMap.onchangeview event.

C.
Implement client-side clustering by using JavaScript.

D.
Implement server-side clustering by using Microsoft ASP.NET 2.0.