Let's begin by identifying key information given to us:
[tex]\begin{gathered} \frac{n}{0.9}=\frac{0.6}{2.7} \\ \text{Cross multiply, we have:} \\ 2.7n=0.6(0.9) \\ \text{2}.7n=0.54 \\ \frac{2.7n}{2.7}=\frac{0.54}{2.7} \\ n=\frac{0.54}{2.7}=0.2 \\ n=0.2 \end{gathered}[/tex]Hence, A is the correct answer
