Do the D1 schools have the major she is interested in? Are they academically sound schools that will help her achieve her academic goals?
As a former recruiting coordinator for a team I always asked the players - do you want to start and make an immediate impact on a team or do you want to sit the bench and potentially never see the field? This, of course, is assuming your dd is looking at a team sport.
I’d always be cautious if a D1 went quiet and now all of a sudden there’s interest again. To me that means that she isn’t a top recruit for them.
Does the D3 offer any merit money? If so, it might be a whole lot more than what she would get athletically at the D1 level, and would be good for all four years as long as she keeps her grades up.