In a certain code, (i) 'juka lal mit sut' stands for 'Hello, how are you?';
(ii) 'mudi sut em nif for 'Where are they going?';
(iii) 'hu zul met sut' for 'What are their names?'; and
(iv) 'lal sut zul pe' for 'Are you going too?'.
Which of the following words in the above code language stand for 'are you'?