Advanced British English Quiz; Lesson 3; Part 2

Level up your English from basic to intermediate and advanced.
British English Quiz, Lesson 3. Part 2.
Which group includes unrelated words?
parade, commemorate, ostentatious, marching bands
nostalgia, sentimental longing, wistful yearning, bygone times
harnesses, rhetoric, commanding, peripheral
prime, superiority, optimal, zenith

Which group explains “enticing ”?
coalesce, labyrinth, vigour, bespoke tailoring
tempting, alluring, captivating, stimulate
unravel, disentangle, resolve, disintegration
nucleus, centre, core, membrane-bound organelle