Read the following context and choose the best option to answer the question.
Context: 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 .
Question: Why do some buyers get aggravated with the store ?
Options: 
A. The boxes they ship with are poor quality .
B. Items are frequently broken .
C. The wait times are long .
D. None of the above choices .


C