Consider the reaction given below $\mathrm{A}+2 \mathrm{~B} \longrightarrow 3 \mathrm{C}+2 \mathrm{D}$. If rate of disapperance of B is $x \times 10^{-2} \mathrm{~mol} \mathrm{~L}^{-1} \mathrm{~s}^{-1}$, the ratio of rate of reaction and rate of appearance of C is

• Correct answer
  A

  1:3
• B

  3:1
• C

  1:2
• D

  2:1

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