Which sentence is most clearly written?

The first choice presents a clear and precise comparison by specifying both groups being analyzed—older criminals and younger criminals. The use of “higher than for younger criminals” establishes a direct and unambiguous relationship between the two groups, making it easy for the reader to understand the comparison being made.

In contrast, while the other choices also convey similar information, they lack some clarity or precision. For example, choice B omits the word "criminals" after "younger," which can create minor ambiguity about the subject being compared. Choice C uses more complex wording with "considerably elevated," which, while grammatically correct, may introduce unnecessary complexity that can obscure the main idea. Choice D, although still accurate, employs a passive construction with "There was" that might sound less direct and engaging compared to the first option.

Overall, the first sentence stands out for its straightforward and direct approach, enhancing clarity and readability.