Please only answer the questions below if you are 100% sure your answers are correct

Please only answer the questions below if you are 100% sure your answers are correct. 

2)Strokes are caused by:

a.tardive penumbra

b.cerebral hemorrhage

c.cerebral ischemia

d.all of the above

e.both B and C

3)Selective attention:

a.blocks out the perception of those stimuli that are its focus

b.seems to depend totally on changes in receptors

c.seems to depend totally on thalamic mechanisms

d.has no effect on perception

e.improves the perception of stimuli that are its focus

4)Symptoms of Alzheimer's disease include:

a.brain atrophy

b.severe dementia

c.neurofibrillary tangles

d.all of the above

e.only A and B

5)Long Term Memory can be further distinguished into:

a.declarative and procedural memory

b.sensory memory and working memory

c.short-term memory and implicit memory

d.anterograde and retrograde amnesia

e.none of the above