Q28
What is the value of a and b after the function call?
A.
a is 3 and b is 4
B.
a is 4 and b is 3
AnswerC.
Both are 3
D.
Both are 4
Answer: Option B
Solution
Answer: Option B
Solution:
b is 3. The former because $arg is passed by reference, the latter because the return value of the function is a copy of the initial value of the argument.