Creswell Corporation's fixed monthly expenses are $$25,000$ and its contribution margin ratio is $67\%.$ Assuming that the fixed monthly expenses do not change, what is the best estimate of the company's net operating income in a month when sales are $$82,000?$

Multiple Choice

a$-$$$57,000$

b$-$ $$29,940$

c$-$ $$54,940$

d$-$ $$2,060$