the tasha benson living trust is a nongrantor trust with a single beneficiary, derrick, this year, the trust had distributive net income $($DNI$)$ of $$20,000.$ after the allocations of deductions, this total includes the following amounts: U$.$S$.$savings bond interest: $$15,000,$ tax$-$exempt interest: $$5,000.$ derrick's $2022$ distribution was $$12,000.$ how much of derrick's distribution will be treated as u$.$ s$.$ savings bond interest?