对绿色植物根尖细胞某细胞器的组成成分进行分析，发现A、T、C、G、U五种碱基组成如下表，则该细胞器中完成的生理活动是

A．CO₂+H₂O→(CH₂O)+O₂

B．mRNA→蛋白质

C．C₆H₁₂O₆₊6H₂O+6O₂6CO₂+12H₂O+能量

D．C₆H₁₂O₆2C₂H₅OH+2CO₂+能量

________him that she would fail as she was so able and worked so hard.[ ]

A. It never occurred to  

B. That never occurred to

C. It never occurred with  

D. That never occurred for