Using the given figure, match the following. Column -I Column -II \[{{a}_{1}}\] \[x{}^\circ =\_\_\_\_\] (p) \[120{}^\circ \] \[{{b}_{1}}\] \[y{}^\circ =\_\_\_\_\] (q) \[30{}^\circ \] \[{{c}_{1}}\] \[(x{}^\circ +t{}^\circ )=\_\_\_\_\] (r) \[50{}^\circ \] \[{{d}_{1}}\] \[(z-y){}^\circ =\_\_\_\_\] (s) \[170{}^\circ \] (t) \[10{}^\circ \]

• A.  \[({{a}_{1}}-r),\,\,({{b}_{1}}-p),\,\,({{c}_{1}}-s),\,\,({{d}_{1}}-t)\]
• B.  \[({{a}_{1}}-{{b}_{1}}),\,\,({{b}_{1}}-{{c}_{1}}),\,\,({{c}_{1}}-{{d}_{1}}),\,\,({{d}_{1}}-{{a}_{1}})\]
• C.  \[({{a}_{1}}-p),\,\,({{b}_{1}}-r),\,\,({{c}_{1}}-t),\,\,({{d}_{1}}-s)\]
• D.  None of these