The correct answer is option (E):
Haggle
The relationship in the first pair of words, Classify : Taxonomist, is that a taxonomist is someone who performs the action of classifying things. Classifying is the job or function of a taxonomist.
Now let's analyze the second part of the analogy, Bargain : ?
We need to find a word that describes the person or entity that performs the action of bargaining.
* Sojourner: A sojourner is someone who stays somewhere temporarily. This doesn't relate to bargaining.
* Minstrel: A minstrel is a musician. This also doesn't relate to bargaining.
* Juggler: A juggler performs the action of juggling. This doesn't relate to bargaining.
* Visitor: A visitor is someone who visits a place. This doesn't relate to bargaining.
* Haggle: To haggle means to bargain.
Therefore, the relationship Bargain : Haggle mirrors the original relationship. A person who bargains is said to haggle.