Q. What is the data layer in the context of GTM?

A
The bottom layer of soil in gardening
B
A JavaScript object that stores information to be sent to tags, such as user data or page details
C
A Google Chrome extension
D
The HTML tag containing the entire page
Solution:

The data layer is a structured object (often windowdataLayer) that holds variables (such as product IDs or user information) that Google Tag Manager (GTM) tags can use.

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