SRAM (Static Random-Access Memory) is a type of semiconductor memory that uses flip-flops to store data. It is known for its high-speed operation and low power consumption compared to other types of memory like DRAM (Dynamic Random-Access Memory). While SRAM is typically used as cache memory in computer systems, it is not commonly used as a non-volatile memory solution. Non-volatile memory, on the other hand, refers to memory that retains its data even when the power is turned off. Examples of non-volatile memory include Flash memory and magnetic storage devices.

In the given options, the correct answer is option C - low power consumption. This means that SRAM is more preferable in non-volatile memory due to its low power consumption characteristics. Let's understand why this is the case.

Low Power Consumption:
- SRAM requires power to maintain the data stored in its flip-flops. However, compared to other types of memory like DRAM, SRAM consumes significantly less power.
- This low power consumption makes SRAM more suitable for non-volatile memory applications where power efficiency is crucial.
- In non-volatile memory, the data needs to be retained even when the power supply is disconnected. By using low-power SRAM, it is possible to minimize the power requirements and extend the battery life of devices that rely on non-volatile memory.
- Additionally, low power consumption also helps in reducing heat dissipation, which is desirable for many electronic devices.

Alternative options:
- Option A: Low-cost is not a characteristic of SRAM. SRAM is generally more expensive than other types of memory like DRAM or Flash memory.
- Option B: High-cost is also not a characteristic of SRAM. As mentioned earlier, SRAM is generally more expensive than other memory types.
- Option D: While SRAM uses transistors as storage elements, this is not the primary reason for its preference in non-volatile memory. Transistors are commonly used in various memory technologies, and their usage alone does not make SRAM more preferable for non-volatile memory.

Therefore, the correct answer is option C - low power consumption, as SRAM's low power requirements make it more suitable for non-volatile memory applications.