Answer and Explanation:
The computation is shown below:
Company Total Assets (a) Total Liabilities (b) Net Income Debt to assets ratio (a÷b) Rank 
A $10,000,000 $1,000,000 $200,000 0.1 1 
B $20,000,000 $3,000,000 $1,000,000 0.15 2 
C $6,000,000 $4,000,000 $250,000 0.666667 4 
D $15,000,000 $6,000,000 $1,600,000 0.4 3 
E $30,000,000 $22,000,000 $4,000,000 0.733 5