The owner of a greenhouse and nursery is considering whether to spend $$6,000$ to acquire the licensing rights to grow a new variety of rosebush, which she could then sell for $$6$ each. Per$-$unit variable cost would be $$3.$ If her available land has design and effective capacities of $3,000$ and $2,000$ rosebushes per year respectively, and she plans to grow $1,200$ rosebushes each year on this land, what will be the utilization of this land?

$100$ percent

opercent

$60$ percent

$40$ percent

$67$ percent