The fact about online identity that isn't true is A. Your online identity only refers to your social media platforms.
<h3>What is an online identity?</h3>
It should be noted that an online identity can include an alias or screen name, an online profile, an avatar and your status updates.
One's online identity doesn't only refer to their social media platforms. An online identity is who you are when you are in cyberspace.
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Hmm, I'd say the answer is shrewd.
Answer:
I think it's negative. Monotonous usually means dull or boring, and neither of those adjectives are used positively.