First i believe its a "figure of speech".
Second they use this to say "it wont be easy but it is possible."
Answer:
D
Explanation:
Just took unit test on Edge and got it right
"Sea-scented beach" is an example of both alliteration and assonance due to the fact that, (alliteration) you have two repeating consonants "<em>s</em><em />ea-<em>s</em><em />cented..." and assonance because of the "ea" in sea, and the "ea" in beach make the same sound.