What is _______over there

What is _______over there Excuse me .What's _______over there?A.is B./C.this D.that The meeting room is quiet big.It can hold eight people.(合并为一句）The meeting is big _____ _______ _______over eighty people. What is what is what is? what is What is what is what is what is what is what is what is what is what is What is What is