This question has options. Answer the question about text:

So , in total we need to wait for 18 days to receives the item . The most problem occurs for online store is item delivery , and most buyer want the item arrives quickly . Those are the example how online store conduct their business differently , some of them are aware of these issue ( delivery , customer help desk ) , and some of them are not .

Why do some buyers get aggravated with the store ?
Available options: a). Items take a long time to get .. b). Items are frequently broken .. c). None of the above choices .. d). The boxes they ship with are poor quality ..
a).