{{B}}Passage Two{{/B}}Why are the prices of mobile telephone services lower in China’s eastern coastal region
单选题
2022-01-09 18:10
A、The average disposable income is lower in the region.
B、The GDP is higher in the region.
C、The costs of operators are lower due to a greater number of users of mobile phone services in the region.
D、The operators compete with each other in order to win over subscribers.