The answer should be:Vulnerability..
A is the answer because it makes more sense.............
Yes, computers may actually progressively and simply just degenerate and regress humans socially, emotionally, and actually, even physically, because there is not enough face to face interaction and if you are staring at computer all day, no exercise at all.
package mypackage; // Whatever package this should be in.
public abstract class DesktopComponent {
private String type;
// Alternatively you may want a final variable.
// private final String type;
public DesktopComponent(String type)
{
this.type = type;
}
abstract void onClick();
}