**Core Concept**
The Bombay blood group, also known as the oh blood group, is a rare blood type characterized by the absence or near-absence of H antigen on red blood cells. This leads to the production of anti-H and anti-A and anti-B antibodies in the serum, making the individual unable to receive blood from any other group.

**Why the Correct Answer is Right**
The presence of Anti-A, Anti-B, and Anti-H antibodies in the serum, along with the absence of H antigen on the red blood cells, is a characteristic feature of the Bombay blood group. The H antigen is responsible for the production of A and B antigens on the red blood cells. In the absence of H antigen, the individual produces antibodies against H antigen, which also reacts with A and B antigens, leading to the presence of Anti-A and Anti-B antibodies. This unique combination of antibodies and antigen absence makes the Bombay blood group a distinct entity.

**Why Each Wrong Option is Incorrect**
**Option A:** O positive blood group would have Anti-A and Anti-B antibodies, but not Anti-H antibody, as it lacks H antigen, making it incorrect.
**Option B:** O negative blood group would have Anti-A and Anti-B antibodies, but not Anti-H antibody, as it lacks H antigen and A and B antigens, making it incorrect.
**Option C:** AB positive blood group would not have Anti-A, Anti-B, or Anti-H antibodies, as it has both A and B antigens, making it incorrect.

**Clinical Pearl / High-Yield Fact**
The Bombay blood group is a rare blood type, with only a few reported cases worldwide. It is essential to recognize this blood group to avoid transfusion reactions, as individuals with this blood group can only receive blood from other individuals with the same blood group.

**✓ Correct Answer: D. Bombay blood group**