Chuchu's plastic jigsaw puzzle of China administrative area is missing. The vacant position is Hubei above, Guangdong and Guangxi below, Guizhou and Chongqing on the left and Jiang on the right.

The neighboring provinces of Sichuan Province in Item B are Chongqing, Guizhou, Yunnan, Tibet, Qinghai, Gansu and Shaanxi, so they are excluded.

C The neighboring provinces of Henan Province are Hebei, Shanxi, Shaanxi, Hubei, Anhui and Shandong, so it is excluded.

D The neighboring provinces of Anhui Province are Jiangsu, Shandong, Henan, Hubei, Jiangxi and Zhejiang, so it is excluded.

So choose: a.