2.7 k. is the code data showed that, with very minor variations, the temperature of the background radiation is exactly. Hence, option C is correct.
<h3>
What is background radiation?</h3>
Background radiation is the amount of ionizing radiation in the environment at a certain location that isn't the consequence of deliberate introduction of radiation sources.
Background radiation can come from both natural and man-made sources. Background radiation is created by naturally occurring radioactive minerals in the soil, water, and earth.
Thus, option C is correct.
For more details about background radiation, click here:
brainly.com/question/12540552
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