John works as a Network Administrator for Perfect Solutions Inc. The company has a Debian Linuxbased network. He is working on the bash shell in which he creates a variable VAR1. After some…

John works as a Network Administrator for Perfect Solutions Inc. The company has a Debian Linuxbased network. He is working on the bash shell in which he creates a variable VAR1. After some calculations, he opens a new ksh shell. Now, he wants to set VAR1 as an environmental variable so that he can retrieve VAR1 into the ksh shell. Which of the following commands will John run to accomplish the task?