Advanced American English Quiz, Lesson 4; Part 2

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American English Quiz, Lesson 4. Part 2.
Which group includes incohesive words?
investigation, interrogation, inquiry, inquisition
prosecution, criminal proceedings, charge with crime, take to court
devour, consume, absorb, heresy
hostile intent, malicious, Trojan Horse, threat

Which group explains “stint“?
bounded portion, economize, curtail, tenure
Inaugural, initiation or commencement,
disregard, downplay, Dismiss, discharge
greedily or destructively, electorate, sweeping reforms