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Match the column-I (Fundamental Experiment) with Column-II (its conclusion) and select the correct option from the choices given below the list:
\begin{tabular}{|l|l|l|l|}
\hline \multicolumn{2}{|c|}{ Column-I } & \multicolumn{2}{c|}{ Column-II } \\
\hline A. & Franck-Hertz & p. & Particle nature of light \\
\hline B. & \( \begin{array}{l}\text { Photo electric } \\
\text { experiment }\end{array} \) & q. & \( \begin{array}{l}\text { Discrete energy levels } \\
\text { of atom }\end{array} \) \\
\hline C. & \( \begin{array}{l}\text { Davision-Germer } \\
\text { experiment }\end{array} \) & r. & \( \begin{array}{l}\text { Wave nature of } \\
\text { electron }\end{array} \) \\
\hline & & s. & Structure of atom \\
\hline
\end{tabular}
(1) A-(p); B-(s); C-(r)
(2) A-(q); B-(s); C-(r)
(3) A-(q); B-(p); C-(r)
(4) A-(s); B-(r); C-(q)
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