Hi Mister... ;-) ,
The Question Is Too Simple.
Answer : The Answer Is Option "B"
This Is Because, In The Sentence , There Are Multiple Persons. And "Is" Is Only Used When We Talk About One Person....
But , According To This Sentence , Option "B" Is, Right , Because "Are" Is Used , When We Talk About Multiple Persons
Hope This Answer Helped You
^_^
And Thanks For The Points ;-)