Advanced American English Quiz; Lesson 2; Part 2;

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American English Quiz, Lesson 2. Part 2.
Which group is related to “rampage”?
violently, destructively, invading, devastation
bang for one's buck, optimal efficiency, payoff, expended
rep, reputation, repetition, representative
allegiances, notoriously, sentiment, abbreviation

Which group explains “timid”?
deflect, turn aside, redirect, divert away
hesitant, reticence, apprehension, restraint
throw sb in at the deep end, challenging, demanding, unfamiliar
smack, strike sharply, collision, booing

Which group is not semantically related?
rioters, furious, unrestrained outbreak, chaos
fickle, capriciousness, instability, not steady
setback, reversal, hindrance, deficiency in boldness
on the clock, bound by, designated timeframe, adhere to