This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Types of Genetic Disorders, Subject name: Pediatrics
Which of the following is indicated by the pedigree given below? 
Select and explain. 
A. Adopted into family, B. Adopted out of family, C. Identical twins, D. Nonidentical twins
C: Identical twins
Answer: C: Identical twins 
Explanation: None