They will never solve the riddle<span />
Alliteration is the repetition of the same consonant sound in initial position in a series of words.
So, the correct answer here is B (Great is the Golden Cat who treads) as the sound "G" is repeated in the words "great" and "golden".
In answers A, C and D no consonant sound in initial position is repeated, so there is no example of alliteration.
I would say the correct answer is the native Americans' peaceful 9 months occupation of Alcatraz island.