Sixty-Eight-Year-Old Twins Mary and Tina Are Trying to Solve a Crossword

question 6

Multiple Choice

Sixty-eight-year-old twins Mary and Tina are trying to solve a crossword puzzle by working together. This is an example of

• A) metacognition.
• B) mnemonics.
• C) collaborative cognition.
• D) external strategy.

---

Definitions:

Sleep

A natural, periodic state of rest for the mind and body, characterized by altered consciousness and reduced sensory activity.

Depression

A mood disorder characterized by persistent feelings of sadness, hopelessness, and a lack of interest or pleasure in activities.

Heart Rate

The number of heartbeats per unit of time, typically expressed as beats per minute (BPM).

Seasonal Affective Disorder

A type of depression that occurs at the same time every year, often during fall or winter, influenced by changes in light.