Please help! I have 10 minutes!! Look at the two wave diagrams.

Two graphs with time on the x axis and air pressure on the y axis. Wave A is taller and skinnier than wave B.

Which best describes the difference between wave A and wave B?

Wave A has a greater pitch and frequency.

Wave B has a greater pitch and frequency.

Wave A has a greater pitch but lower frequency.

Wave B has a lower pitch but greater frequency.

Where are the following questions

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.