Match the following vitamins with their sources and the corresponding diseases caused by their deficiency.
\begin{array}{llllll}
\hline & Vitamins & & Sources & & Diseases \\
\hline (A) & Vitamin-B _1 & (i) & Egg-whites & (p) & Convulsions \\
\hline (B) & Vitamin-B _2 & (ii) & Fish & (q) & \begin{array}{l}
Pernicious \\
anemia
\end{array} \\
\hline (C) & Vitamin-B _6 & (iii) & \begin{array}{l}
Green \\
vegetables
\end{array} & (r) & Cheilosis \\
\hline (D) & Vitamin-B _{12} & (iv) & Grams & (s) & Beri-Beri \\
\hline
\end{array}

1. A (A-ii-r), (B-iv-p), (C-iii-s), (D-i-q)
2. B (A-iv-p), (B-ii-q), (C-i-r), (D-iii-s)
3. C (A-iii-s), (B-i-r), (C-iv-p), (D-ii-q)
4. D (A-i-q), (B-iii-s), (C-ii-r), (D-iv-p)