The number of Chinese citizens receiving the new extended US B1 business and B2 tourist visas surged in December and January, just a few months after the US and China announced a change to their international visa reciprocity agreement. The US issued 351,650 business and tourist visas to Chinese citizens in December and January, a year-on-year jump of 68.2%. At this time last year, the US had given 209,100 visas, a US State Department official said. Chinese visitors have accounted for one-fifth of the growth in overseas travel to the US since 2008.

How many visas did the US issue to Chinese citizens in December and January?

A. 351,650

B. 315,650

C. 351,560

（中國日報網(wǎng)英語點津 許晶晶 編輯）