The following distance-measuring techniques,arranged in order of the distance for which they are most effective,from smallest to greatest,are

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Spectroscopic parallax is effective for measuring distances up to a few hundred light years. Cepheid variables are effective for measuring distances up to tens of millions of light years. Tully-Fisher relation becomes useful for measuring distances beyond the range of Cepheid variables, up to hundreds of millions of light years. Type Ia supernovae are the most distant objects observed in the universe, and are used to measure cosmic distances up to billions of light years away. Therefore, the correct order is spectroscopic parallax, Cepheid variables, Tully-Fisher relation, and Type Ia supernovae, which is best represented by choice C.

The Following Distance-Measuring Techniques,arranged in Order of the Distance for Which