What is the Terraform style convention for indenting a nesting level compared to the one above it?

What is the Terraform style convention for indenting a nesting level compared to the one above it?
A . With a tab
B . With two spaces
C . With four spaces
D . With three spaces

Answer: B

Explanation:

This is the Terraform style convention for indenting a nesting level compared to the one above it. The other options are not consistent with the Terraform style guide.