Answer:
(A) $20,000 net income
Explanation:
[tex]Sales \times $Contribution Margin Ratio = Total Contribution[/tex]
500,000 * 20% = 100,000
[tex]Contribution - Fixed \: Cost = Result \: for \: the \: period[/tex]
100,000 - 80,000 = 20,000 net income
Remember: The contribution margin represent how much contribution bring to the table $1 of sales.
So if CMR equals to 20% each dollar generates $0.20 of contribution