Match the autoimmune diseases in $\text{Group I}$ with the corresponding primarily affected organ in $\text{Group II}$.

$$\begin{array}{|l|l|l|l|} \hline & \textbf{Group I} && \textbf{Group II} \\ \hline P. & \text{Hashimoto’s disease} & 1. & \text{Brain} \\ \hline Q. & \text{Juvenile diabetes} & 2. & \text{Pancreas} \\ \hline R. & \text{Multiple sclerosis} & 3. & \text{Skeletal muscle} \\ \hline S. & \text{Myasthenia gravis} & 4. & \text{Thyroid} \\ \hline \end{array}$$

1. $P-1, Q-2, R-3, S-4$
2. $P-3, Q-1, R-2, S-4$
3. $P-4, Q-2, R-1, S-3$
4. $P-1, Q-2, R-4, S-3$

1 vote