Consider the product structure tree shown below $.$ A $(2)$ B C $(3)$ D $(3)$ D $(2)$ G $(3)$ H $(2)$ E $(4)$ F $(2)$ K $(4)$ F $(2)$ E $(4)$ F $2)$ J $(2)$ E $(3)$ K $(4)$ With a beginning inventory of twenty for all components on level one $,$ five for all components on level two $,$ and zero for all components on level three and finished items $,$ how many K$\text{'}$s are needed to produce $25$ product X$\text{'}$s $?$ A$.560$ B$.530$ C$.550$ D$.540$