Final answer:
Building blocks in Word contain content that is stored as text and can be easily edited and customized.
Step-by-step explanation:
The correct answer is e. they contain content that is stored as text.
Building blocks in Word are pre-designed sections or elements that can be used to quickly create professional-looking documents. These building blocks typically contain text but can also include other types of content such as images, tables, or shapes. The content in building blocks can be easily edited and customized to fit the needs of a specific document.