How to fix or redo a program in matlab?

Question

Informatics

Determine if it is true that when a non-negative number a is divided by a
positive integer b, the remainder is equal to one of the two
given numbers c or d.
Here's what I got, but they said it was wrong, you need to define the remainder in some other way.

a=25;
b=5;
c=5;
d=3;
if a/b==c || a/b==d
disp ('верно');
else
disp ('неверно');
end

What needs to be fixed?

Answer 1

if mod(a,b)==c || mod(a,b)==d