In a batch reactor, a substance A was processed, which generated different products (D and U), through competitive parallel reactions with the following reaction kinetics: After 20 minutes of...

In a batch reactor, a substance A was processed, which generated different products (D and U), through competitive parallel reactions with the following reaction kinetics: After 20 minutes of reaction, it was determined that the composition of the reaction medium was CA = 1 mol/L, CD = 5 mol/L, CU = 2 mol/L. The option that indicates, respectively, the instantaneous and global selectivities at the end of the reaction are:

A) 3 and 2.

B) 2.5 and 2.

C) 2 and 3.

D) 2 and 2.5.