Hi,
I was wondering if an English degree in obtained in Poland is enough language proof to be eligible to apply for a citizenship if the transcript says that the classes were held in both Polish and English.
I don't think it will be sufficient, based on the wording in the link below, which indicates the program you took must be in English or French, which I interpret to mean the entire program. It does also say that a single course in English or French is not enough. However, you could call IRCC for clarification.