**Core Concept**
Polymerase enzymes are essential for DNA replication and synthesis, particularly in recombinant DNA technology. The correct polymerase used in recombinant synthesis is known for its unique properties that facilitate efficient and accurate DNA synthesis.

**Why the Correct Answer is Right**
The correct polymerase, T7 RNA polymerase, is a highly processive enzyme that can synthesize long DNA strands with high accuracy. It has a high affinity for nucleotides and can initiate DNA synthesis at a specific promoter sequence. This enzyme is commonly used in recombinant DNA technology for the production of large quantities of specific DNA sequences. The processivity of T7 RNA polymerase is due to its ability to bind to the template DNA and the nascent RNA product, allowing it to synthesize long stretches of DNA without dissociating from the template.

**Why Each Wrong Option is Incorrect**
**Option A:** This option is incorrect because it does not specify a polymerase enzyme, making it a vague choice.
**Option B:** This option is incorrect because it refers to a different type of polymerase, which is not commonly used in recombinant DNA synthesis.
**Option C:** This option is incorrect because it is a type of DNA polymerase, but it is not the correct polymerase used in recombinant synthesis.

**Clinical Pearl / High-Yield Fact**
T7 RNA polymerase is a highly processive enzyme that can synthesize long DNA strands with high accuracy, making it a valuable tool in recombinant DNA technology.

**Correct Answer: C. DNA polymerase**