Answer:
A
Step-by-step explanation:
When dealing with comp sci,
the / symbol only cares about the whole number of the answer unless we cast it to a double.
For example,

in Java,
So here

Since a is assigned to that,

Next, the symbol % acts as the remainder sign

Remember b is 5, and a is 2 now, so

So
b=1
The answer here is A