In cockroaches,the stink glands are found between which abdominal segments?

• A
  $4^{th}$ and $5^{th}$ tergum
• B
  $5^{th}$ and $6^{th}$ tergum
• C
  $5^{th}$ and $6^{th}$ sternum
• D
  $4^{th}$ and $5^{th}$ sternum