One of the Biggest Problems Online Retailers Face Is That

Multiple Choice

One of the biggest problems online retailers face is that nearly two-thirds of online shoppers make it to "check-out" and then leave the website

A) because of slow download times.
B) to compare shipping costs and prices on other sites.
C) because of security fears when entering credit card information.
D) due to the inability to experience the product in person.
E) over dissatisfaction with product availability.