For each of the following sentences, choose one of the options enclosed in square brackets to make a ...

For each of the following sentences, choose one of the options enclosed in square brackets to make a correct statement.
 
  An electron bound to a molecule with low affinity for electrons is a high/low-energy electron.
 
  Transfer of an electron from a molecule with low affinity to one with higher affinity has a positive/negative G and is thus favorable/unfavorable under standard conditions. If the reduced form of a redox pair is a strong electron donor with a high/low affinity for electrons, it is easily oxidized; the oxidized member of such a redox pair is a weak/strong electron acceptor.