One reason that recent immigrants held in prisons did not have much sympathy from the general population was the common belief that they were and inferior.

I believe the answer is violent and Intellectually inferior.
This perception fail to consider the fact that more minorities belonged in a lower economic bracket.
Because of the hardship that they had to face in order to fulfill their daily needs, they're much more likely to committ a crime compared to those who are economically comfortable.

productive most commonly means: achieving or producing a significant amount or result.

explanation:

productive can also mean:

producing or giving rise torelating to or engaged in the production of goods, crops, or other commodities.

these depend on how the word productive is used. most likely productive will mean   achieving or producing a significant amount or result.

Ibelieve its c not quite sure.