Choose the correct statement for processes A & B shown in figure.

$\displaystyle P V=k$ for process $\displaystyle B$ and $\displaystyle A$.

$\displaystyle P V^{\gamma}=k$ for process $\displaystyle B$ and $\displaystyle P V=k$ for process $\displaystyle A$.

$\displaystyle \frac{P^{\gamma-1}}{T^\gamma}=k$ for process $\displaystyle B$ and $\displaystyle T=k$ for process $\displaystyle A$.

$\displaystyle \frac{T^\gamma}{P^{\gamma-1}}=k$ for process $\displaystyle A$ and $\displaystyle P V=k$ for process $\displaystyle B$.