Need help with part B-D only

thank you. Chemical Engineering only.

(Reactor selection and operating conditions) For each of the following sets of reactions, describe your reactor system and conditions to maximize the selectivity to D. Make sketches where necessary to support your choices. The rates are in (mol/dm3s), and concentrations are in (mol/dm3). (a) (1) A+BDr1A=10exp(8,000K/T)CACB (2) A+BUr2A=100exp(1,000K/T)CA1/2CB3/2 (b) (1) A+BDr1A=100exp(1,000K/T)CACB (2) A+BUr2A=106exp(8,000K/T)CACB (c) (1) A+BDr1A=10exp(1,000K/T)CACB (2) B+DUr2B=109exp(10,000K/T)CBCD (d) (1) ADr1A=4280exp(12,000K/T)CA (2) DU1r2D=10,100exp(15,000K/T)CD (3) AU2r3A=26exp(18,800K/T)CA