Final answer:
The term that refers to Cecil's part French-Canadian and part Indigenous ancestry is Métis, one of the recognized Indigenous Peoples groups in Canada according to the Canadian constitution.
Step-by-step explanation:
In the context of Cecil's ancestry being part French-Canadian and part Indigenous, the term that would most aptly refer to her ancestry is Métis. The Canadian constitution identifies three groups of Indigenous Peoples as First Nations, Inuit, and Métis, each with distinct histories, languages, cultures, and spiritual beliefs. The Métis are people of mixed European and Indigenous heritage and are recognized as one of the Indigenous Peoples of Canada. They are different from the First Nations and Inuit both culturally and in terms of the rights accorded to them. Given Cecil's discovery of her ancestry, it is evident that she could identify with the Métis community.