IBPS Clerk Prelims 2017 Paper

(b) The most appropriate word that would fill the blankis 'opportunity' which means a time or set ofcircumstances that makes it possible to do something.All the other words do not fill the blank appropriately,hence option (b) is the most suitable answer choice.Negligence means failure to take proper care oversomething.
Surveillance means close observation, especially of asuspected spy or criminal.