Adaface Sample Pseudo Code Questions

Consider the following pseudo code. 

What does foo() return for very large value of B (Choose closest option)

What does sample(number) return in following pseudo code? (Select the closest approximation)

Consider the following pseudo code:

Which of the following statements are true about function goo()
            
            I) If b is not in A, goo will run into an infinite loop
            II) if b is not in A, goo will return -1
            III) goo() will always return maximum element in A
            IV) goo() is similar to a binary search