সঠিক উত্তর হচ্ছে: .com
ব্যাখ্যা: commercial “.com” is short for “commercial.” A site doesn\'t necessarily have to have a commercial purpose to use it (though most commercial sites do use this domain). Instead, “.com” is a bit of a catch-all, since this domain name is available to anyone. This differs from more restrictive domain names like “