Ok, this is relevant information that was not initially mentioned. Being on academic probation (GPA 1.500-1.999 for the quarter or GPA < 2.000 overall according to https://registrar.ucdavis.edu/records/transcripts/academic-standing ) due to low grades in courses for her major suggests that the major may not be the right one for her.
Can you clarify her class standing? You mentioned that she is a junior, but is “half way” through the major. How many quarters has she completed (including the current one), and how many credit units has she earned (including those she will earn in the current quarter)? At UCD, she needs to graduate within 225 units if she takes more than 12 total quarters.
Which courses has she done well in and liked?
Here is a list of majors at UCD: https://www.ucdavis.edu/majors/college/