Match each differential equation in $\text{Group I}$ to its family of solution curves from $\text{Group II.}$
$$\begin{array}{llll} & \textbf{Group I} & & \textbf{Group II} \\ \text{P.} & \frac{d y}{d x}=\frac{y}{x} & 1. & \text{Circles} \\ \text{Q.} & \frac{d y}{d x}=-\frac{y}{x} & 2. & \text{Straight lines} \\ \text{R.} & \frac{d y}{d x}=\frac{x}{y} & 3. & \text{Hyperbolas} \\ \text{S.} & \frac{d y}{d x}=-\frac{x}{y} & \end{array}$$
- $\text{P-2, Q-3, R-3, S-1}$
- $\text{P-1, Q-3, R-2, S-1}$
- $\text{P-2, Q-1, R-3, S-3}$
- $\text{P-3, Q-2, R-1, S-2}$