সঠিক উত্তর কোনটি

${ }^{12} \mathrm{C}_{3}={ }^{12} \mathrm{C}_{5}$

${ }^{12} \mathrm{C}_{3}={ }^{12} \mathrm{C}_{7}$

${ }^{12} \mathrm{C}_{3}={ }^{12} \mathrm{C}_{9}$

${ }^{12} \mathrm{C}_{3}={ }^{12} \mathrm{C}_{9}$