Which of the following situations is representative of the last mile issue in telecommunications?

A) An e-commerce site is available in only two language versions and customers speaking neither cannot browse through the site while shopping.
B) Subscribers of an Internet service provider that uses optical fiber for Internet connectivity complain of poor Internet speeds as DSL lines have been used as wiring to their homes.
C) Asian buyers of a certain smartphone brand are unable to use features such as 3G and wifi because those countries do not yet have the relevant infrastructure.
D) Students find that the farther they are from their university building, the harder it is to connect to the Internet with their laptops.

B