【正确答案】 C

【答案解析】第三段第三、四句话指出“Interviewers' decisions are often strongly influenced by their previous assessment of the written．application．Also，different recruiters interpret facts differently”；“求职申请书中对应聘者以往的评价对招聘人员的决定影响很大，而且不同的招聘人员会给予同一种事实不同的解释”。此外第五段第二句指出“．．．interviewing could become more reliable if the questions were more structured and focused on the needs of the employing organisation”：“如果面试时所提的问题结构性更强些、更加集中于招聘单位的需要的话，面试就会变得更可靠些”。因此选项A、B、D都是研究报告中所提出的认为面试并不可靠的原因，故选C)。