Harmony Company sells hand-knit scarves. Each scarf sells for $40. The company pays $60 to rent vending space for one day. The variable costs are $15 per scarf. How many scarves should the company sell each day in order to break even? (Round to nearest whole scarf)

a) 2 scarves
b) 3 scarves
c) 20 scarves
d) 4 scarves