Что надо вставить, … is … … on the table. there, a, pen pens, there, the pen, there, a pen, there, the

There is a pen on the table. Первое утверждение подходит

There, a, pen-There is a pen 
Pens, there, the- The pens are there
Pen, there, a- A pen is there 
Pen, there, the The pen is there /There is the pen