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Correct answer:B
Explanation:
Seting the coldwallet account on ELLIPAL App, it means that you synchronized your public key address to the App, while the private key is still secured in airgapped Titan.
In other words, coldwallet account on App and the account in Titan is the same, you can’t send to yourself.
However, you may think I can do. For example, I can have two cold wallet accounts for myself, and these accounts can send each other, or I can send from my hot wallet account to my cold wallet account. Yes, you can do these. Although both accounts are your, their addresses are different, so you can do this. What the question talk about is the same account address, as a reslut, you can’t send to yourself. What you can do is send from one address to another address.