This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Pediatrics
True statement about Puetz Jegher syndrome is 
Select and explain. 
A. Autosomal recessive inheritence, B. Ileum is the most common site, C. Caused by gain of function mutation of STK 11, D. Increased risk of sex cord tumors
D: Increased risk of sex cord tumors
Answer: D: Increased risk of sex cord tumors 
Explanation: Puetz Jegher syndrome

Autosomal dominant inheritence.
Jejunum is the most common site.
Caused by loss of function of STK 11.
Increased risk of sex cord tumours, small intestinal, pancreatic, breast, lung and ovarian cancer.