Final answer:
Namembe should store his monthly credit card statements in a filing cabinet, financial folder, or a password-protected electronic folder, ensuring easy access and security against unauthorized access or damage.
Step-by-step explanation:
The most logical place for Namembe to store his monthly credit card statements would be in a secure and organized system such as a filing cabinet, a dedicated financial folder in a home office, or in electronic form within a password-protected folder on his computer. It's important to maintain records in a consistent location where they are safe from physical damage and protected from unauthorized access.
Additionally, Namembe might consider using financial software or apps that can help to keep digital records securely organized. Whatever method he chooses, it should allow him to easily access and review the statements when needed, such as during tax season or for tracking spending habits.