Classical biotechnology dates back about years ago.
a.100
b.1,000
c.10,000
d.100,000

The correct answer should be C. 10,000. Although it sounds like something futuristic, it's existed almost as long as civilzied humans because it was present in the form of selective breeding of animals and plants during the early eras of agriculture and settling in river valleys. Nowadays it's more complex and more things can be achieved.

Answerthe half-reaction having the greatest tendency to occur at the anode:     i₂(aq) + 2e⁻  ⇄ 2i⁻  ;   e = +0.53 v======oxidation occurs at the anode. we must therefore find the half-reaction with the greatest tendency to oxidize.the given values of e are reduction potentials (the form of the half-reactions are of reduction).the lower the reduction potential, the higher the potential to oxidize. the half-cell with the lowest reduction potential will have the greatest tendency to oxidize at the anode.the half-reaction having the greatest tendency must be    i₂(aq) + 2e⁻  ⇄ 2i⁻    e = +0.53 vbecause its reduction potential is the lowest out of the three.