Match the following. \begin{array}{ll|l} \hline A. & Angular momentum & 1. \left[\mathrm{M}^{-1} \mathrm{~L}^2 \mathrm{~T}^{-2}\right] \\ B. & Torque & 2. \left[\mathrm{M}^1 \mathrm{~T}^{-2}\right] \\ C. & Gravitational constant & 3. \left[\mathrm{M}^1 \mathrm{~L}^2 \mathrm{~T}^{-2}\right] \\ D. & Tension & 4. \left[\mathrm{M}^1 \mathrm{~L}^2 \mathrm{~T}^{-1}\right] \\ \hline \end{array}

• A

  $C-2, D-1$
• Correct answer
  B

  $A-4, B-3$
• C

  $A-3, C-2$
• D

  $B-2, A-1$

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