For those needing more context, like I did, the tweet is a voice clip quiz. You're given three voice clips, spoken by heroes with very similar voices, and you have to guess which one belongs to Lilina, the hero pictured in the tweet. The clips are
"I've had it with you!" (Mou shiranai! もう、知らない!) (correct answer) "Rowr-rowwwr!" (Gao-gaoooo! がおがおー!) (A line by Fa/Fae) "I thank you!" (Orei shite yo ne! お礼してよね!) (A line by Sara)
Updated
RRAWRR! RRAWRR!
Reference to a twitter question posted by @FE_Heroes_JP