In a Vernier calipers,when both jaws touch each other,the zero of the Vernier scale is shifted to the right of the zero of the main scale and the $7^{th}$ Vernier division coincides with a main scale division. If the value of $1$ main scale division is $1 \text{ mm}$ and there are $10$ Vernier scale divisions,then the Vernier caliper has

• A
  $0.07 \text{ cm}$ negative zero error
• B
  $0.7 \text{ cm}$ negative zero error
• C
  $0.07 \text{ cm}$ positive zero error
• D
  $0.7 \text{ cm}$ positive zero error