Final answer:
GA cannot by default recognize returning users across different browsers and devices; it requires additional configurations since GA uses cookies which are specific to each browser. The given statement is false (option b)
Step-by-step explanation:
The correct answer to whether GA can recognize returning users over multiple sessions from different browsers and devices by default is b. False. G Analytics tracks users through cookies placed in a user's browser. When a user visits a site from a different browser or device, a new cookie is created, which makes it difficult for GA to recognize that user as a single returning user across the different browsers and devices without additional configurations.
Hence, the answer is option b.