What is the issue with this Angular virtual scroll template?
<cdk-virtual-scroll-viewport>
<div *cdkVirtualFor="let item of items">{{item}}</div>
</cdk-virtual-scroll-viewport>AThe <code>items</code> array must be declared in the template
BIncorrect directive syntax; should use *ngFor instead of *cdkVirtualFor
CMissing required <code>itemSize</code> property on <code>cdk-virtual-scroll-viewport</code>
DThe viewport height must be set via CSS for virtual scroll to work
