Question 10: Consider the code given below. Choose the correct option.

1import java.util.*;
2class Team{
3    HashMap<String, String> f = new HashMap<String, String>();
4    public Team() {
5        f.put("CSK", "Radhakrishnan");
6        f.put("MI", "Ambani");
7    }
8    public String getOwner(String t){
9        return f.get(t);
10    }
11}
12public class OptionalTest {
13    public static void main(String[] args){
14        Optional<String> op1 = Optional.ofNullable(new Team().getOwner("CSK"));
15        Optional<String> op2 = Optional.ofNullable(new Team().getOwner("RCB"));
16        op1.ifPresent(n->System.out.println(n.toUpperCase()));
17        op2.ifPresent(n->System.out.println(n.toUpperCase()));
18    }
19}