According to Boyle's law, $\large\frac{V}{T}=$ constant, at any constant pressure and n..

$\large\frac{V}{T}=$ constant is represented in Graph-3 above.

$\rightarrow V = kT$ corresponds to Graph-1.

$\rightarrow \log V - \log T = \log k$ which corresponds to Graph-2.

Hence (D) None of these is the answer.