What level nipple for bottles?

Stephanie

I go back to work this week and I’m wondering what level nipple to give daycare for her bottles. She’ll be 12 weeks and we’ve been doing 0 for her occasional bottle but I wonder if I should move her up to 1 or 2 since she’ll be 3 months. What level do you guys use?

I still want to continue nursing in the morning and evenings