**Core Concept**
Heroin withdrawal is a complex physiological process characterized by severe symptoms such as anxiety, agitation, insomnia, diarrhea, abdominal cramps, and muscle aches. The withdrawal symptoms are primarily due to the abrupt cessation of opioid receptor stimulation, leading to an increase in the release of neurotransmitters like noradrenaline and cortisol.

**Why the Correct Answer is Right**
The correct answer is related to the fact that heroin withdrawal does not typically feature a prominent increase in body temperature. In contrast, alcohol withdrawal is well-known for causing a significant elevation in body temperature, which can sometimes lead to severe complications like seizures and delirium tremens. This is because alcohol withdrawal results in an imbalance of neurotransmitters such as serotonin and GABA, which regulate body temperature. Heroin withdrawal, on the other hand, does not exhibit this characteristic temperature increase.

**Why Each Wrong Option is Incorrect**
**Option A:** This option is not relevant to the question as it does not address a feature of heroin withdrawal.
**Option B:** This option is incorrect as it does not accurately describe a characteristic of heroin withdrawal.
**Option C:** This option is incorrect as it is a common symptom of heroin withdrawal, characterized by abdominal cramps and diarrhea.

**Clinical Pearl / High-Yield Fact**
A key aspect of heroin withdrawal is the presence of severe anxiety and agitation, which can sometimes lead to complications like seizures and cardiac arrhythmias.

**Correct Answer:** B.