单选题 The jobs available to people with little education are, in the main, insecure and low-paid with irregular hours, high levels of intensity, little protection from health and safety______and few opportunities for promotion.
A. hazards B. interference C. guarantee D. harassment

【正确答案】 A

【答案解析】根据结构和句意可知，and前后成分形式相同意思相近，所以此空与safety应构成名词短语，含义为“不安全”。hazards隐患，危险。interference干扰。guarantee保证。 harassment骚扰。显然只有safety hazards“安全隐患”的搭配符合题意。