Which memory type does not lose data when the power is turned off?

The correct answer is secondary storage, as this type of memory retains data even when the power is turned off. Secondary storage devices, such as hard drives, solid-state drives, CDs, and USB flash drives, use non-volatile memory technology. This means that the data stored remains intact without a continuous power supply.

In contrast, primary memory, often referred to as RAM (Random Access Memory), is volatile. It requires power to maintain the information it holds, meaning any data is lost when the system is powered down. Dynamic and static data structures are concepts related to how data is organized in memory, but they do not refer specifically to memory types in terms of volatility or persistence of data. Both dynamic and static data structures are typically implemented in primary memory, therefore losing their content when power is removed.