Please select the eligibility criteria that correspond to the clinical trial below.
Title: Study to Enhance Motor Acute Recovery With Intensive Training After Stroke
Brief Summary: Stroke often results in limitation of arm movements, from which many people do not fully recover. We believe that early and intensive therapy is important to enhance recovery of arm movements after stroke. We are doing this research study to see how much arm movements improve with intensive therapy in patients have had a stroke in the past 6 weeks.


Options:
A: Inclusion Criteria:

* First ever stroke same and less than 30 days (diagnostic criteria according to the World Health Organization definition; corresponding to ICD-9 code 434) weather cortical or subcortical, and ischemic or haemorrhagic.
* Unilateral localization of the stroke verified by computed tomography (CT).
* More or equal than18 years.
* Ability to understand and execute simple instructions.
* Spanish Version of Trunk Impairment Scale.2.0 less than10 points.
* National institute of Health Stroke Scale (NIHSS) score \> 4 points.

Exclusion Criteria:

* Rankin scale more or equal than 2 points before stroke.
* Orthopaedic and other neurological disorders that hamper sitting balance.
* Relevant psychiatric disorders that may prevent from following instructions.
* Other treatments that could influence the effects of the interventions.
* Contraindication to physical activity (e.g., heart failure).
* Using cardiac pacemakers.
* Moderate to severe cognitive impairments as indicated by Minimental test score \< 24 points.
* Patients with haemorrhagic stroke that have undergone surgery.
B: Inclusion Criteria:

1. Age over 21 years
2. Ischemic stroke confirmed by CT or MRI within the previous 6 weeks
3. No history of prior ischemic or hemorrhagic stroke with associated motor deficits (prior stroke with no motor symptoms is allowed)
4. Residual unilateral arm weakness with Fugl-Meyer Upper Extremity (FM-UE) score 6-40 at time of enrollment.
5. Ability to give informed consent and understand the tasks involved.

Exclusion Criteria:

1. Space-occupying hemorrhagic transformation or associated intracranial hemorrhage.
2. Arm impairment that is too severe or too mild on day of baseline testing just prior to beginning of the study intervention.
3. Recent botox injection to upper limb or planned botox injection over the course of the 7-month study duration.
4. Cognitive impairment, with score on Montreal Cognitive Assessment (MoCA) ≤ 20.
5. History of physical or neurological condition that interferes with study procedures or assessment of motor function (e.g. severe arthritis, severe neuropathy, Parkinson's disease).
6. Inability to sit in a chair and perform upper limb exercises for one hour at a time.
7. Participation in another upper extremity rehabilitative therapy study during the study period.
8. Terminal illness
9. Social and/or personal circumstances that interfere with ability to return for therapy sessions and follow up assessments.
C: Study population: Subjects with a diagnosis of stroke

Inclusion Criteria:

* first stroke (\<6 months ago)
* presence of hemiparesis in the lower extremity
* minimum Berg Balance Score (BBS) of 30/56
* cognitive ability to give informed consent

Exclusion Criteria:

* bilateral stroke, or a previous stroke in the other hemisphere
* severe co-morbidity that is likely to dominate the pattern of care
* co-existing peripheral neuropathies or disorders of the vestibular apparatus
* musculoskeletal problems
* global aphasia or receptive aphasia
D: Inclusion Criteria:

* stroke onset \>3 months prior to study enrollment
* subject has at least 10 degrees mobility over wrist, thumb and fingers on the affected side
* subject can move, stand up and stand firmly with constrained healthy hand
* subject can perform training 6 hours daily in 2 weeks
* subject is able to understand instructions and be able to cooperate

Exclusion Criteria:

* pregnancy
* contraindications to MRI of brain
* epilepsy, major psychiatric disease
* excessive pain that prevents training
* history of other diseases resulting decreased mobility of affected upper limb

Answer: B