Question

in the play ,the two players cannot see or hear _____,but they are seated at interconnected computers.​

Answer 1

I think the blank consists sound

Answer 2

The correct answer for the blank given in the question sentence is:-

in the play, the two players cannot see or hear each other, but they are seated at interconnected computers.​

• the use of "but" shows that the sentence indicates a contrast.
• interconnected computers mean that computers are connected internally with each other through software.
• so even if the players cannot see or hear "each other", they are still in contact with each other through the computers.