All oncogenic viruses containing RNA belongs to-
**Core Concept**
The question is testing the student's knowledge of oncogenic viruses, specifically those that contain RNA. Oncogenic viruses are viruses that have the potential to cause cancer, and they can be either DNA or RNA viruses. The correct answer will identify the type of oncogenic viruses that contain RNA.
**Why the Correct Answer is Right**
Oncogenic RNA viruses are a group of viruses that can cause cancer in humans. They include viruses such as the Human T-Cell Leukemia Virus (HTLV), the Human Immunodeficiency Virus (HIV), and the Hepatitis C Virus (HCV). These viruses contain RNA as their genetic material and can integrate into the host genome, leading to the development of cancer. The correct answer will identify the category of oncogenic viruses that includes these viruses.
**Why Each Wrong Option is Incorrect**
**Option A:** This option is incorrect because it does not specifically identify oncogenic viruses that contain RNA. While some DNA viruses can be oncogenic, this option is too broad and does not answer the question.
**Option B:** This option is incorrect because it is incomplete and does not provide a specific category of viruses.
**Option D:** This option is incorrect because it is not a specific category of oncogenic viruses.
**Clinical Pearl / High-Yield Fact**
It's essential to remember that oncogenic viruses can be categorized based on their genetic material, with DNA viruses (such as the Human Papillomavirus) and RNA viruses (such as the HTLV and HIV) being two distinct groups. Understanding the differences between these groups is crucial for identifying the underlying cause of cancer in a patient.
**Correct Answer:** C. Oncogenic RNA viruses