A small group of travelers is meeting inside an ancient building, and the travelers need access to the Internet using their mobile devices. However, the group is in an area where Wi-Fi Internet is not available and cellular coverage is intermittent. One of the travelers has an unlimited cellular data plan and a strong consistent signal. Which of the following methods would most likely be implemented to provide Internet service to the group?
a. Cell phone tethering
b. Satellite Internet
c. Mobile hotspot
d. Cell phone tethering