Given below are two statements :

Statement I : Hyperconjugation is a permanent effect.

Statement II : Hyperconjugation in ethyl cation $\left({\mathrm{CH}}_3-\stackrel{+}{\mathrm{C}}{\mathrm{H}}_2\right)$ involves the overlapping of ${\mathrm{C}}_{{\mathrm{sp}}^2}-{\mathrm{H}}_{1 \mathrm{s}}$ bond with empty $2\mathrm{p}$ orbital of other carbon.

Choose the correct option:

• A

  Both statement I and statement II are false
• B

  Statement I is incorrect but statement II is true
• Correct answer
  C

  Statement I is correct but statement II is false
• D

  Both Statement I and statement II are true.

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