Match hypersensitivity types in Group I with their corresponding condition in Group II. \[\begin{array}{c c} \textbf{Group I} & \textbf{Group II} \\ \text{P. Type I} & \text{1. Erythroblastosis fetalis} \\ \text{Q. Type II} & \text{2. Host reaction to bee venom} \\ \text{R. Type III} & \text{3. Systemic lupus erythematosus} \\ \text{S. Type IV} & \text{4. Tuberculin reaction} \\ \end{array}\]
Match the autoimmune diseases in Group I with the corresponding primarily affected organ in Group II. \[\begin{array}{c c} \textbf{Group I} & \textbf{Group II} \\ \text{P. Hashimoto's disease} & \text{1. Brain} \\ \text{Q. Juvenile diabetes} & \text{2. Pancreas} \\ \text{R. Multiple sclerosis} & \text{3. Skeletal muscle} \\ \text{S. Myasthenia gravis} & \text{4. Thyroid} \\ \end{array}\]