Please select the eligibility criteria that correspond to the clinical trial below.
Title: The Hypertension in the Very Elderly Trial (HYVET)
Brief Summary: The purpose of this study is to assess the benefits and risks of treating very elderly (those aged 80 or older) individuals with hypertension.


Options:
A: Inclusion Criteria:

* SBP of 210 mmHg or less and DBP less than 115 mmHg if under antihypertensive treatment; SBP 160-210 mmHg or DBP 95-115 mmHg if untreated. Presence of at least one or two risk factors or cardiovascular diseases Informed consent obtained

Exclusion Criteria:

stroke or myocardial infarction during the previous 6 months; secondary hypertension; unstable angina; cardiomyopathy or significant valvular disease; serum creatinine greater than 178 mmol/l (2.0 mg/dl); gout; uncontrolled diabetes(fasting plasma glucose \> 10 mmol/l, 180 mg/dl despite therapy); serious pulmonary or hepatic disease; known contraindications to study drugs; unwillingness to cooperate
B: Inclusion Criteria:

* First ever stroke or TIA
* No cognitive decline (IQCODE \< 3,7)
* Survived the acute stroke
* Expected to live at least for one year after stroke

Exclusion Criteria:

* Cognitive decline
C: Inclusion Criteria:

* Aged 80 or older
* Sitting systolic BP 160-199 mmHg AND sitting diastolic BP \< 110 mmHg

Exclusion Criteria:

* Known accelerated hypertension (retinal haemorrhages or exudates or papilloedema).
* Overt clinical congestive heart failure requiring treatment with a diuretic or angiotensin converting enzyme inhibitor. Subjects allowed if treated with digoxin only.
* Renal failure (serum creatinine of more than 150 µmol/l).
* Previous documented cerebral or subarachnoid haemorrhage in the last 6 months. (Ischaemic cerebral and cardiac events do not exclude, although the patient must be neurologically and cardiologically stable.)
* Condition expected to severely limit survival, e.g. terminal illness.
* Known secondary hypertension (e.g. renal artery stenosis, chronic renal insufficiency, and endocrine cause).
* Gout.
* Clinical diagnosis of dementia.
* Resident in a nursing home, i.e. where the dependency and care requirements of the patients are such that they require the regular input of qualified nurses and therefore the majority of staff in the home are nurses (other forms of residential care are acceptable).
* Unable to stand up or walk
* Participation in a drug trial within the past month preceding selection.
* Alcohol or drug abuse.
* Less than 2 months placebo run-in.
* Contraindications to use of trial drugs
D: Inclusion Criteria:

* At least 55 years of age.
* Previously untreated or treated hypertension.
* For patients \>= 60 years, evidence of at least one CV disease or target organ damage, or for patients 55-59 years evidence of at least two CV diseases or target organ damage from two different organ systems as defined in the protocol.

Exclusion Criteria:

* Allergy to any of the drugs administered in this trial.
* Current angina pectoris (ie, no anginal event requiring NTG within 1 month prior to Visit 1).
* Secondary hypertension.
* Refractory hypertension defined as SBP \>= 180 mmHg and/or DBP \>= 110 mmHg unresponsive to triple-drug regimens of sympatholytics, diuretics and vasodilators.
* History of symptomatic heart failure (NYHA classes II-IV) or ejection fraction \< 40%.
* Myocardial infarction, coronary revascularization (CABG or PCI), unstable angina within one month of Visit 1.
* Stroke or transient ischemic event (TIA) within 3 months of Visit 1.
* Significant obstructive valvular cardiovascular disease or any valvular disease expected to lead to surgery during the course of the study.
* Evidence of hepatic disease (AST or ALT values \>= 2 X upper limit of normal).
* Impaired renal function (serum creatinine \>= 2.5 mg/dL (221 µmol/L)).
* Baseline serum potassium of \> 5.2 meq/L not on potassium supplements.
* History of malignancy including leukemia and lymphoma (but not basal cell skin cancer) within the last 5 years.
* History of clinically significant auto immune disorders such as Systemic Lupus Erythematosus.
* Significant non-cardiovascular illness or condition likely to result in death prior to trial completion, e.g., major organ transplant (life expectancy \<5 years).
* Significant cardiovascular disease such as an aortic aneurysm ≥ 6 cm, likely requiring surgical intervention during the course of the study.

Other protocol-defined exclusion criteria applied to the study.

Answer: C