I will add to the above, which I agree with, that possible major choice can be a part of her “story”. If her class choices, (maybe more extra curricular choices), support a strong interest in Genetics or Econ, stating a desire to major in that can tie it all together. If she wants to go into business has she interned or started a biz or anything connected, if that’s her Econ interest. Or joined whatever club at her school might be relevant. Same with genetics - does she take advanced science courses, read about the subject outside of school, whatever.