The correct answer is: C. Cdma2000 1xEV-DO, Cdma2000 1xEV-DV.
Cdma2000 1xEV is a family of 3G wireless technologies that are based on the CDMA2000 1xRTT standard. The two main options provided by Cdma2000 1xEV are Cdma2000 1xEV-DO and Cdma2000 1xEV-DV.
Cdma2000 1xEV-DO (Data Only) is a packet-switched technology that provides high-speed data services. It is capable of delivering data rates of up to 3.1 Mbps.
Cdma2000 1xEV-DV (Data and Voice) is a combination of Cdma2000 1xRTT and Cdma2000 1xEV-DO. It provides both voice and data services. It is capable of delivering data rates of up to 14.4 Mbps for data and 1.2 Mbps for voice.
Cdma2000 1xEV is a widely deployed technology that is used by many wireless carriers around the world. It offers a good balance of performance and cost, making it a popular choice for both consumers and businesses.
A. Cdma2000 1xRTT. Cdma2000 3xRTT is incorrect because Cdma2000 3xRTT is not an option provided by Cdma2000 1xEV.
B. Cdma2000 1xEV-DO, Cdma2000 1xEV-DV is correct because Cdma2000 1xEV-DO and Cdma2000 1xEV-DV are the two main options provided by Cdma2000 1xEV.
C. Cdma2000 1xEV-DT, Cdma2000 1xEV-DO is incorrect because Cdma2000 1xEV-DT is not an option provided by Cdma2000 1xEV.