On December 31,2018,a Company Had Assets of $16 Billion and Stockholders

Multiple Choice

On December 31,2018,a company had assets of $16 billion and stockholders' equity of $8 billion.That same company had assets of $20 billion and stockholders' equity of $9 billion as of December 31,2019.During 2019,the company reported total sales revenue of $9 billion and total expenses of $7 billion.What is the company's debt-to-assets ratio on December 31,2019?

A) 0.55
B) 0.45
C) 0.035
D) 0.01