java please

1.wordSet is type Multiset.

What is true about the code below?

wordSet.add("bird"); wordSet.add("tree"); wordSet.add("bird"); while(wordSet.contains("bird")) { wordSet.remove("bird"); } 

Group of answer choices

there is a compiler error

there will be a runtime error (an exception thrown)

there will be an infinite loop

none of these is correct

2. wordSetis type Multiset.

What is true about the code below?

wordSet.add("bird"); wordSet.add("tree"); wordSet.add("dog"); while(!wordSet.isEmpty()) { wordSet.remove("cat"); } 

Group of answer choices

none of these is correct

there is a compiler error

there will be a runtime error (an exception thrown)

there will be an infinite loop