The correct answer is: B. Project based on cdma2000.
3GPP2 is a project that develops technical specifications for 2G and 3G cellular networks based on cdma2000 technology. It was founded in 1998 as a joint venture between the Third Generation Partnership Project (3GPP) and the Telecommunications Industry Association (TIA). 3GPP2 is responsible for developing standards for a variety of technologies, including cdma2000, EV-DO, and LTE-Advanced.
W-CDMA is a different type of 3G technology that was developed by the 3GPP. It is not compatible with cdma2000.
2G and 2.5G standards are older technologies that are no longer widely used. 2G standards include GSM and CDMAOne, while 2.5G standards include GPRS and EDGE.
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