Because the nineteen alchemists were too embarrassed to ask her again after hearing her answer so frankly and honestly that she was an alchemist, they talked among themselves again.
"Since she is young, I believe the number of years she has been practising alchemy should be comparable. So, even if she is an alchemist, an extraordinarily talented at that, she should be at the Ancestor rank."
"Mm, I agree that it should be this way as well. Anyway, she can't be higher than Ancestor rank alchemist, so the prescription we give her should be at a level that will stump her."