Hi @Vincenzo Cassese,
Thanks for sharing your question with us! Happy to help!
Your first option, option A, is the correct segment sequence for your ‘between’ dates. These dates should always start with the smaller amount of days ending in the larger amount, ie 30→ 60.
Additionally, if you were segmenting between specific dates you would start with the earlier date and end with the date closest to the present. ie. 2/7/23 → 2/21/23 and not 2/21/23 → 2/7/23.
Hope this helps! Thanks for participating in the Community!
-Taylor