Amongst them all, she was the only one with the perquisite to understand the complexity of the situation.
perspicacity
The correct word is "perspicacity", which means the ability to perceive or understand things quickly and accurately. "Perniciousness" refers to something harmful, "peremptoriness" means a bossy or commanding attitude, and "presumptuousness" refers to an overconfident or forward behavior, none of which fit the context.
Select the segment in which a word has been INCORRECTLY used.
Is the Abominable Snowman a friction of the mountaineers’ imagination?
The officer under suspension felt intimated by the committee members during his interrogation regarding the allegations against him.
At the official function organised for the attending dignitaries, guests arrived in scrumptious attire for the banquet.
The lake atop the mountain has always been the lyre for intrepid hikers.
The candidates went through an intensive instruction process before their absorption into the service.