28. When business is ______, there is usually an obvious increase in unemployment.
A. degraded B. depressed C. reduced D. lessened

<depress>
depress v.使沮丧, 使萧条
depression 沮丧, 萧条, 低洼地带
</depress>

<degrade>
degrade v.(使)降级, (使)堕落
</degrade>

<reduce>
reduce vt.减少, 缩小
induce 诱惑, 劝诱
produce 生产
deduce 推断, 推论, 演绎出
educate 教育
education n.教育
introduce 介绍
</reduce>

<lessen>
lessen 减少, 变得更小
enrich 使丰富, 使充实
</lessen>

<recession>
recession （经济）不景气
</recession>

<redundant>
redundant 冗余的
</redundant>