The correct answer is "Two identical DNA molecules are made that contain one original strand and one paired strand."
Explanation:
The word "conserve" refers to the action of preserving an element. Moreover, the prefix "semi" refers to partial. In this context, DNA replication can be considered as a semi conservative process because the original DNA is partially preserved. This is explained in "Each of the two daughter molecules made during replication contain one strand from the parent molecule and one new strand" because this excerpt shows how in the process each of the cells resulting has at least 50% of the DNA of the original cell. This implies replication does not lead to a completely new cell as part of the genetic material is kept. According to this, this process can be considered as semiconservative because "Two identical DNA molecules are made that contain one original strand and one paired strand."
