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 one of the following is the complementary sequence of 5' TTAAGCTAC 3' ? 
Select and explain. 
A. 5' GTAGCTTAA 3', B. 5' AATTCGCATG 3', C. 5' CATGCGAATT 3', D. 5' TTAAGCGTAC 3'
A: 5' GTAGCTTAA 3'
Answer: A: 5' GTAGCTTAA 3' 
Explanation: None