**Core Concept**
The management of unstable angina involves the use of various pharmacological agents to reduce myocardial oxygen demand, prevent thrombus formation, and improve coronary blood flow. **Antiplatelet agents**, **anticoagulants**, **nitrates**, and **beta-blockers** are commonly used.

**Why the Correct Answer is Right**
The correct answer is not provided, however, the typical management includes **aspirin** as an antiplatelet agent, **heparin** as an anticoagulant, **nitroglycerin** for vasodilation, and **metoprolol** as a beta-blocker. These drugs work by inhibiting platelet aggregation, preventing clot formation, dilating coronary arteries, and reducing heart rate and contractility.

**Why Each Wrong Option is Incorrect**
**Option A:** Without the specific option, it's challenging to provide a detailed explanation.
**Option B:** Similarly, without the specific option, it's difficult to explain why it's incorrect.
**Option C:** And again, the lack of a specific option makes it hard to provide a reason.
**Option D:** The same issue applies here.

**Clinical Pearl / High-Yield Fact**
In unstable angina, it's crucial to remember that **aspirin** and **beta-blockers** are typically initiated immediately to reduce morbidity and mortality.

**Correct Answer:** Not provided in the query.