What does this accomplish?

You have created a new block and will be adding this block on every page. The block contains user-specific information and cannot be cached.

The block is added to the default.xml with:

What does this accomplish?
A . The block will be loaded on the store front using AJAX
B . FPC will cache the block content for all cacheable pages
C . FPC will be bypassed for this block and all other page content will be cached
D . All store front pages are no longer cacheable

Answer: D

Explanation:

https://magento.stackexchange.com/questions/103256/how-to-disable-the-cache-for-the-block-in-magento-2