Answer:
A. $20 million
Step-by-step explanation:
The balance sheet comprises of the assets and liabilities. With the help of the accounting equation, the total assets are equal to the total liabilities including stockholder's equity.
In mathematically,
Total assets = Total liabilities + Shareholder equity
$170 million = $70 million + $80 million + borrowed amount
$170 million = $150 million + borrowed amount
So, the borrowed amount would equal tp
= $170 million - $150 million
= $20 million