Meyer Corporation has two sales areas: North and South. During April, the contribution margin in the North was $90,000, or 30% of sales. The segment margin in the South was $25,000, or 10% of sales. Traceable fixed expenses were $30,000 in the North and $15,000 in the South. Meyer Corporation reported a total net operating income of $52,000.

What was the total fixed expenses for Meyer Corporation : a.$45,000 b.$33,000 c.$85,000 d.$78,000