An appellate court can,

a- affirm a trail court's decision

b- reverse a trail court's judgement if it concludes that the trial court erred or the jury did not receive proper instructions

c-give instructions to the jury

d-remand the case to the court

e-Modify a trail court's decision

f-determine guilt or innocence by evaluating testimony and evidence

g- all of the above

h-a, b, c, d, only

i-a, b, c, d, e only