The purpose of alliteration in this sentence is to make the 'slogan' stick in people's minds. This person is trying to make coin collecting sound like a fun activity that people will want to do, and using alliteration like this will have them easily remember the slogan long after they've read it.
For example there is a referee that says congress on him franklin d. roosevelt pointing to a group of other football players that is the judicial branch. fdr wanted to stack the supreme court because they thwarted some things. he tried to do. he actually tried to get a number of constitutional amendments, such as letting him replace justice.
Answer:
It is the second option.
Explanation:
The simile talks about a gradual change, so I am assuming it is the gradual change of the seeds.