Compared to those who only speak one language, people who speak two languages are typically better able to perform complex processes and are less likely to experience symptoms of dementia. these cognitive benefits of speaking multiple languages occurs as a result of

Theses cognitive benefits of speaking multiple languages occurs as a result of LANGUAGE CO-ACTIVATION.

Explanation:

Language co-activation is the process whereby a bilingual or multilingual individual's brain even when using one language maintains the active parts of the brain associated with the other language/languages. For example, an English & French speaking lady even while speaking French, her brain would still maintain the active parts of her English language.

Language co-activation has the benefits of higher rate of sensory perception leading to improved brain structure. The process of language co-activation is automatic leading the brain being able to perform complex processes and reduce likelihood of experiencing dementia.

answer: d.she abandons people when they least expect it.

in the monk's tale, we encounter seventeen stories that relate historical events. all of these stories have tragic commonalities. they tell the stories of heroes who, despite their success in life, all met sad ends. the monk blames these sad outcomes on fortune. one of fortune's traits is that she abandons people when they least expect it. this is one of the most common themes of medieval tragedies.