Nowadays school bus safety has drawn much attention nationwide for children's safety is _______

worries parents most.     [ ]

A. why      

B. which

C. that      

D. what  

为了反对近代西方列强对中国的侵略，郑观应在（）中提出大力发展民族工商业，同西方国家进行商战。

A.《海国图志》

B.《四洲志》

C.《救亡决论》

D.《盛世危言》