According to the man, why is Apple Pay not as popular in China?

A、 ApplePayonlysupportsAppledevices.
B、 AlipayandWeChatPaycanoffermanycityservices.
C、 PeopleinChinahavealreadyusedtoAlipayandWeChatPay.
D、 AlipayandWeChatPayaremuchbetterpaymentmethodsthanApplePay.