Final Answer:
The preferred hypertensive drug treatments in patients with diabetes exclude c. Atenolol.
Step-by-step explanation:
1. *Losartan (Cozaar):* Losartan is an angiotensin II receptor blocker (ARB) and is often preferred in patients with diabetes due to its renal protective effects and ability to reduce proteinuria.
2. *Benazepril (Lotensin):* Benazepril is an angiotensin-converting enzyme (ACE) inhibitor, commonly used in diabetic patients for its renal protective properties and blood pressure control.
3. *Atenolol:* Atenolol is a beta-blocker. While beta-blockers can effectively lower blood pressure, they are generally not considered as first-line agents in patients with diabetes due to potential adverse effects on glucose metabolism.
4. *Valsartan (Diovan):* Valsartan, like Losartan, is an angiotensin II receptor blocker and is often preferred in diabetic patients for its beneficial effects on the cardiovascular and renal systems.
**Correct Option: c. Atenolol.**