Which of the following compounds are the same? 
Compound 1: 1.10 g of H and 8.90 g of O. 
Compound 2: 4.95 g of H and 40.05 g of O. 
Compound 3: 2.10 g of H and 32.90 g of O. 
Compound 4: 4.70 g of H and 60.30 g of O 
A. Compounds 1 and 4 
B. Compounds 2 and 4 
C. Compounds 2 and 3 
D. Compounds 1 and 2