Tracie owns the following portfolio of stocks.

Stock Amount Invested Return on Stock

A $$5,0007\mathrm{.}2\%$

B $$3,50010\mathrm{.}0\%$

C $$8,0008\mathrm{.}3\%$

What is the return on her portfolio?

A$\mathrm{.}7\mathrm{.}9\%$

B$\mathrm{.}8\mathrm{.}3\%$

C$\mathrm{.}9\mathrm{.}0\%$

D$\mathrm{.}9\mathrm{.}3\%$