## **Core Concept**
The question pertains to the process of putrefaction, which is the breakdown of tissues after death due to the action of bacteria and enzymes. Different tissues have varying rates of putrefaction based on their bacterial load, enzymatic activity, and structural composition.

## **Why the Correct Answer is Right**
Bone tissue putrefies late compared to soft tissues like muscles, liver, and intestines. This is because bone has a lower bacterial load and its compact structure slows down the enzymatic breakdown. The process of putrefaction in bone is significantly delayed due to its dense and relatively avascular nature, making it one of the last tissues to undergo significant changes during decomposition.

## **Why Each Wrong Option is Incorrect**
- **Option A:** Muscle tissue is highly vascular and has a significant bacterial load, making it one of the tissues that putrefies early.
- **Option B:** Liver tissue is rich in blood and enzymes, which facilitates early putrefaction.
- **Option C:** Intestinal tissue, being a part of the gastrointestinal tract, has a high bacterial load, leading to early putrefaction.

## **Clinical Pearl / High-Yield Fact**
A key point to remember is that the rate of putrefaction can be influenced by environmental factors such as temperature, presence of oxygen, and the initial bacterial load of the tissue. Bone, being relatively resistant to early putrefaction, can sometimes provide valuable forensic evidence in advanced stages of decomposition.

## **Correct Answer:** D. Bone.