Each of the following questions contains statements given in two columns, which have to be matched. The answers to these questions have to be appropriately bubbled. If the correct matches are A-r, A-s ; \( \mathrm{B}-p, \mathrm{~B}-q ; \mathrm{C}-p ; \mathrm{D}-q, \mathrm{D}-s \), then the correctly bubbled matrix will look like the one shown here :
\( \begin{array}{llll}\text { 45. Column I } & & \text { puclear fission } \\ \text { A. Atomic nucleus } & \text { p. } & \text { nucle } \\ \text { B. } & \text { mass defect } & \text { q. } & \text { nuclear fusion } \\ \text { C. } & E=m c^{2} & \text { r. } & \text { binding energy } \\ \text { D. } & \text { Stability of nucleus } & \text { s. } & \text { much smaller than atom }\end{array} \)
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