Answer:
Worry.
Explanation:
As per the question, the given reaction would be labeled as 'worry' as reflected by the 'constant persistence of thoughts relating to the fear of the failure and the threat of the effect of this failure on the career '. The 'conjured up images in the mind' exemplify a disturbed and anxious state of mind due to the dread of negative outcomes that correctly define 'worry' that is a result of proactive risk evaluation of prospective threats or negative consequences. Therefore, <u>the threat associated with the fear of failure in the quiz announced by teacher causes a kind of anxiousness and fright, thinking about the failure(negative impact) which may further affect the student's career exemplifies 'worry'. </u>
