Answer:
The opportunity cost is the income earned from her balance on savings account at the interest rate of 3% per year that Reece would received if she had not opened her owned brewery business. This opportunity cost is $600 per year.
Step-by-step explanation:
Please find the below for further explanation and calculations:
The opportunity cost per one year = Income earned on saving account per one year = 20,000 x 3% = $600;
The reason why it is an opportunity cost is because as a result of opening brewery business, Reece sacrifices the income earned on this saving, instead, she contributes the saving fund to her brewery business.