the Philippine Islands the Virgin Islands the Hawaiian Islands the Galapagos Islands
I am hesitating between 4 options to answer the following question, which option should I choose?
Question: Darwin's theory that animal species can change over time was inspired by his research on which set of islands?
Possibilities:
- the Philippine Islands
- the Virgin Islands
- the Hawaiian Islands
- the Galapagos Islands

the Galapagos Islands