A company produces key chains. The data include price $1, unit variable cost $0.4, monthly fixed cost $3,000 and tax rate 30%. The owner wants to earn an after-tax profit of $10,500 per month. How many key chains must be produced and sold to meet that goal?

	a.	32,000.
	b.	36,000.
	c.	30,000.
	d.	24,000.