请教GWD-6-Q28 有点糊涂了

According to the promotional material published by the city of Springfield,more tourists stay in hotels in Springfield than stay in the neighboring city of Harristown. A brochure from the largest hotel in Harristown claims than more tourists stay in that hotel than stay in the Royal Arms Hotel in Springfield. If both of these sources are accurate, however, the county's "Report on Tourism" must be in error in indicating that              .

有点不明白, 最后的那个county's report 是另外引入的概念呢, 还是指前面的那个 promotional material by the sity of Springfield 呀?  请指教,谢谢~~~~!

是新的report

其实意思就是，根据以上信息，下列哪个must be wrong

原来如此，明白了