-1 -1 The following reactions take place A- 2D (1 AU (2 with k, = 0.1 min' and , A =0.005 s. For a pure feed of A of 0.2 M If the concentrations at the exit of the CSTR were 0.04 M A, 0.12 D. The overall selectivity of :D to U is given by 1A a. SD/U=k, A/2CKA b. Sp/u=k, AA/KA 1AA2A c. None d. Sp/u= 2K, /KA 1A