Question: Q 1 2 ) Assuming these classes represent a 3 tier program, what is the issue with this code? class Presentation { public int add

Q12) Assuming these classes represent a 3 tier program, what is the issue with this code?
class Presentation{ public int add(int i1, int i2)
retum i1+i 2;
Q 1 2 ) Assuming these classes represent a 3 tier

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