Is the most widely used method of formally measuring public opinion.
a. face-to-face interviewing
b. polling
c. the census
d. democratic elections

B. Polling

Explanation:

The most widely sued method to obtain data without any time lag or any sort of problem and the privacy of the respondents are considered accordingly. The public opinion cannot take face to face thus this method is most suitable for large masses. It helps to gather data quickly is cost-effective and does not allow much biasness. Polling can be done on any subject any topic.

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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.