Final answer:
The provided text does not specify which activity Monica and her mom go out to do in the country, and the passages given do not mention Monica or her activities. Additional context is needed to provide a correct answer.
Step-by-step explanation:
The activity that Monica and her mom go out to do in the country is not explicitly provided within the provided text. The passages shared from different stories do not mention Monica and her mom, or their activities in the country. They cover a variety of scenes and characters, such as Bernice in Eau Claire, Inayah after school, Caitlin in Madrid, a young boy heading to school, songs being sung by various individuals, a conversation about picnics, slaves singing en route to the Great House Farm, Bibi singing while cooking, and Trina doing weekly shopping. Without additional context or a specific source, we cannot determine which activity Monica and her mom go out to do in the country.