The ratio of number of oxygen atoms (O) in 16.0 g ozone ($\text{O}_3$), 28.0 g carbon monoxide (CO) and 16.0 g oxygen ($\text{O}_2$) is (Atomic mass: C = 12, O = 16 and Avogadro's constant $\text{N}_\text{A} = 6.0 \times 10^{23}\ \text{mol}^{-1}$)