Which Block Kit block type is commonly used to display a simple block of text?

The `section` block is one of the primary Block Kit components for presenting textual content. Slack defines a section as a block that can contain a text object, an array of fields, and optionally a compatible accessory such as a button, image, date picker, or select menu. This makes it appropriate for ordinary explanatory text, headings combined with content, structured information, and interactive message sections. A `divider` block simply produces a visual separation between adjacent blocks and does not carry ordinary text content. An `image` block is intended primarily for image presentation, while a `context` block displays secondary contextual information using text and images in a compact format. For a straightforward textual block in a Slack message, modal, or Home-tab layout, the section block is therefore the standard choice. Accordingly, B is correct.