遵义市是国家级红色旅游城市，每年都吸引众多海内外游客前来观光、旅游．据有关部门统计报道：2012年全市共接待游客3354万人次．将3354万用科学记数法表示为

A．3.354×10⁶

B．3.354×10⁷

C．3.354×10⁸

D．33.54×10⁶

Had I known about this computer program,  a hugeamount of time and energy ______. [ ]

A. would have been saved                                  

B. had been saved

C. will be saved                                              

D. was saved