Operating conditions for a plug-flow reactor for the elementary liquid-phase reaction A +BR are as follows: CAO=0.10kmol/m3CBO=0.10kmol/m3V=0.50m3vo=0.20m3/minCA(atexit)=0.040kmol/m3 The space (residence) time (min) for this reactor and the conversion of A are most nearly: A. 2.5min;0.40 B. 2.5min;0.50 C. 2.5min;0.60 D. 2.5min;0.75 E. 2.5min;0.25