The correct answer is D. no article.
The word “cycle” is a common noun, which means it does not refer to a specific cycle. In this case, the speaker is expressing surprise at the high price of the cycle, and they are not referring to a specific cycle. Therefore, no article is needed.
The other options are incorrect because they all use articles. The article “a” is used before singular common nouns that refer to a general thing or person. The article “an” is used before singular common nouns that begin with a vowel sound. The article “the” is used before singular common nouns that refer
to a specific thing or person.In this case, the speaker is not referring to a general cycle or a specific cycle. They are simply expressing surprise at the high price of the cycle. Therefore, no article is needed.