Which of the following 3G standard is used in Japan?

The correct answer is B. TD-SCDMA.

TD-SCDMA (Time Division-Synchronous Code Division Multiple Access) is a 3G mobile telecommunications standard developed by China Mobile. It is the only 3G standard that is not based on the GSM family of standards. TD-SCDMA was first deployed in China in 2009 and has since been adopted by several other countries, including Japan.

CDMA2000 is a 3G mobile telecommunications standard that is based on the CDMA family of standards. It was developed

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