Answer:
sentence 4
Step-by-step explanation:
The sentence that is not relevant to the information in the paragraph is sentence 4: "Rocket fuel is usually a highly refined type of kerosene." This sentence provides general information about the type of fuel used in rockets, but it is not directly relevant to the description of the early space capsules or their launches. The other sentences describe the features and functions of the capsules during launch and reentry. Therefore, the answer is C. sentence 4.