Final answer:
The total stockholders equity at the end of May is $144,000.
Step-by-step explanation:
To determine the total stockholders equity at the end of May, we need to consider the changes in obligations, economic resources, and the increase in stockholders equity.
Starting with $58,000 of obligations and $180,000 of economic resources, the difference between them is:
$180,000 - $58,000 = $122,000
In addition, the stockholders equity increased by $22,000 during May. So, the total stockholders equity at the end of May is:
$122,000 + $22,000 = $144,000
Therefore, the correct answer is B. $144,000.