Which of the following is not true of Terraform providers?

A. Providers can be written by individuals
B. Providers can be maintained by a community of users
C. Some providers are maintained by HashiCorp

D. Major cloud vendors and non-cloud vendors can write, maintain, or collaborate on Terraform providers

E. None of the above

Reference: https://jayendrapatil.com/terraform-cheat-sheet/#Terraform_Read_and_write_configuration