C-03-Q211mediumsingle_mcq1/121/121/12 of the mass of one carbon-12 atom equals:a1.66×10−221.66 \times 10^{-22}1.66×10−22 gb1.66×10−241.66 \times 10^{-24}1.66×10−24 gc1.67×10−241.67 \times 10^{-24}1.67×10−24 gd9.11×10−289.11 \times 10^{-28}9.11×10−28 g