In which segment of the body of the male cockroach is the mushroom-shaped gland found?

• A
  $2^{nd} - 6^{th}$ abdominal segments
• B
  $6^{th} - 7^{th}$ abdominal segments
• C
  $4^{th} - 6^{th}$ abdominal segments
• D
  $2^{nd} - 4^{th}$ abdominal segments