Consider the following statements regarding chain elongation during DNA synthesis and choose the correct answer:
1. The separated strands are kept open by DNA binding proteins (DBPs)
2. A DNA chain is initiated on the 3'- OH end of the primer
3. Okazaki fragments are synthesized on one strand; there is continuous DNA synthesis in the other strand
4. Okazaki fragments are joined by endonuclease

A. 1, 2, 3 and 4 are true

B. Only 2, 3 and 4 are true

C. Only 1, 2 and 3 are true

D. Only 1, 3 and 4 are true

Answer: Option C