Compare the world rank for both types of phones (fixed line and cellular) listed for each of the African countries in the table above (Nigeria, Ghana, and Mali). What is the most likely reason for the difference? O A. Cell phones are more popular in countries with a larger population of young people. O B. Cell phones are less expensive in countries where most people live in the countryside. O C. Cell phones are more necessary in countries with a shortage of reliable fixed lines. O D. Cell phones are less restrictive in countries where a great deal of travel is common.​