The number of positive integral solutions of $x y z=60$ is

• A

  ${ }^{59} \mathrm{C}_2$
• Correct answer
  B

  ${ }^4 \mathrm{C}_2 \times{ }^3 \mathrm{C}_2 \times{ }^3 \mathrm{C}_2$
• C

  ${ }^4 \mathrm{C}_3$
• D

  ${ }^3 \mathrm{C}_1 \times{ }^4 \mathrm{C}_0 \times{ }^4 \mathrm{C}_4$

Hence, the correct answer is option: 'B'.