**Core Concept**
The management of open-angle glaucoma involves decreasing the intraocular pressure (IOP) to prevent further damage to the optic nerve. **Beta blockers**, **prostaglandin analogs**, **alpha agonists**, and **carbonic anhydrase inhibitors** are commonly used. In a hypertensive patient, the choice of medication should also consider the systemic effects.

**Why the Correct Answer is Right**
Since the correct answer is not provided, let's consider the options. Typically, for a hypertensive patient with open-angle glaucoma, a **beta blocker** such as timolol would be a good choice because it can decrease IOP and also has a beneficial effect on systemic hypertension by reducing heart rate and cardiac output.

**Why Each Wrong Option is Incorrect**
**Option A:** Without knowing the specific option, it's difficult to provide a detailed explanation, but generally, if it's not a **beta blocker** or a **prostaglandin analog**, it might not be the first choice for a hypertensive patient.
**Option B:** Similarly, without specifics, if it's a medication that could potentially worsen hypertension or has no beneficial effect on it, it would be less ideal.
**Option C:** and **Option D:** would follow similar logic, with the best choice being one that effectively reduces IOP without exacerbating hypertension.

**Clinical Pearl / High-Yield Fact**
In managing open-angle glaucoma, especially in patients with systemic hypertension, it's crucial to choose an agent that not only reduces IOP but also considers the patient's overall health, including their cardiovascular status. **Beta blockers** like timolol are often favored for their dual benefits.

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