$\backslash$table$[[,$Bond,Portfolio Weight $(\%)],[$A$,\backslash$table$[[$A $$1,000$ twenty$-$year $4\%],[$coupon bond with the$],[$interest rate of $6\%]],30],[$C$,\backslash$table$[[$A $$1,000$ eight$-$year discount$],[$bond with the interest rate$],[$of $7\%$