What is the command you can use to set an environment variable named "var1"of type String?

What is the command you can use to set an environment variable named "var1"of type String?
A . export TF_VAR_VAR1
B . set TF_VAR_var1
C . variable "var1" { type = "string"}
D . export TF_VAR_var1

View Answer

Answer: D

Explanation:

The environment variable must be in the format TF_VAR_name, so for the Question: TF_

VAR_var1 is the correct choice.

https://www.terraform.io/docs/commands/environment-variables.html#tf_var_name