Instruct: Classify the following sentence into a predefined topic category:
which is the fastest way of dubbling my money u.s. gov. bonds ($50 for $100 in 5 years)or cds from your bank?
Assign it to one of the following topics:[Society & Culture, Science & Mathematics, Health, Education & Reference, Computers & Internet, Sports, Business & Finance, Entertainment & Music, Family & Relationships, Politics & Government]
Output: