Which one of the following statements is correct ?

Options

A. Patients , who had undergone surgery are given cannabinoids to relieve pain
B. Benign tumours show the property of metastasis
C. Heroin accelerates body functions
D. Malignant tumours exhibit metastasis

Answer

To solve the question regarding which statement is correct, we will analyze each option provided:

1. **Option A: Patients who had undergone surgery are given cannabinoids to relieve pain.**
- Cannabinoids are compounds found in cannabis. While they may have some medicinal properties, they are not the primary choice for post-surgical pain relief. Typically, opioids like morphine are used for this purpose. Therefore, this statement is incorrect.

2. **Option B: Benign tumors show the property of metastasis.**
- Benign tumors are non-cancerous growths that do not spread to other parts of the body. They remain localized and do not exhibit metastasis, which is the process by which cancer cells spread to distant sites. Hence, this statement is also incorrect.

3. **Option C: Brain accelerates body functions.**
- This statement is misleading. The brain does regulate many body functions, but it does not universally accelerate them. For example, certain brain functions can slow down body processes, especially in the case of depressants. Therefore, this statement is incorrect.

4. **Option D: Malignant tumors exhibit metastasis.**
- Malignant tumors are cancerous and have the ability to invade surrounding tissues and spread to other parts of the body through the bloodstream or lymphatic system. This property is known as metastasis. Therefore, this statement is correct.

Based on the analysis, the correct answer is **Option D: Malignant tumors exhibit metastasis.**