Answer:
A. decline in their secondary language before their primary language.
Step-by-step explanation:
In the lecture by Dr. Brice, he states that there is a decline in secondary language before primary language and this claim is supported by a study by Dr. Alejandro Brice and colleagues titled "Alzheimer’s Dementia From a Bilingual/Bicultural Perspective: A Case Study", it was reported that individuals suffering from dementia then to decline in the use of their secondary language compared to their primary language. In the study, individuals whose primary language was spanish were still able to communicate quite well in Spanish as compared to English which was their secondary language