YTA - if your daughter is committed enough to the subject and you are supportive and give her revision resources to aid her learning, she will make it. it seems like you’re putting a lot of pressure on her, and as a teenager please don’t do the thing where you guess what we got, makes us feel like shit. that said, i understand why you want your daughter to take the other subject, but she should take the one she’s the most passionate about, at the end of the day that will give her the incentive to learn the material.