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单选题
General aviation airport operation instructions are certified by （ ） ; en-route and line airport operation instructions are certified by （ ） and put on the records of CAAC, and international airport operation instructions are certified by （ ） .
A
regional administration of CAAC, CAAC, CAAC
B
regional administration of CAAC, regional administration of CAAC, CAAC
C
CAAC, CAAC, regional administration of CAAC
D
CAAC, regional administration of CAAC, regional administration of CAAC
答案解析
正确答案：B
