a) Biased. Because you stop been arbitrary and take a side whether positive or negative about the object of study. Losing Objectivity and arbitrarily. And when you research in order to know about a topic you have to know the good and bad to build a strong hypothesis with enough arguments, to be capable of prepare a defence in case someone wants to false it.
Explanation:
The concept biased means that the posture is inclined to one side: positive or negative, without being objective. Thus, an informative speech has to be objectively neutral or arbitrary: which means without taking a posture to speak in favor or against the phenomenon or object of study. Objectivity is considered, to tell the truth about something including positive and negative. When your objective is to inform, you have to describe as much as you can the object or phenomenon. In contrast when you want to take a posture to support or false that phenomenon you can take a side.
A person freed from some "cave" or kind of prison , dark place, maintaining opinions about the shadows. In this scenario this person should take some time to adapt to the bright light. Each person has your bit of time to adapt to a new situation. For example when you are crossing a tunnel you instantly become a bit blind. In this situation I don´t think that the person could be exposed to ridicule down there.
It would be sledge because A fricative is a consonant sound that is created by constricting the vocal tract, causing friction as the air passes through it.
