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: Biochemistry
Which of the following are DNA sequencing techniques 
Select and explain. 
A. Sanger's technique, B. Maxam and Gillbert techique, C. Next generation sequencing, D. All of the above
D: All of the above
Answer: D: All of the above 
Explanation: All the 3 are techniques used in DNA sequencing.