Final answer:
The data provided for the suspected sample are consistent with the composition of LSD within the allowed limits of error.
Step-by-step explanation:
The data provided for the suspected sample containing 74.07% carbon, 7.95% hydrogen, and 9.99% nitrogen are consistent with the composition of LSD (Lysergic acid diethylamide) within the allowed limits of error. In the chemical formula of LSD, there are 10 carbon atoms, 15 hydrogen atoms, 2 nitrogen atoms, and 1 oxygen atom (C20H25N3O).
By comparing the percentages of carbon, hydrogen, and nitrogen in the suspected sample with the expected composition of LSD, it is found that the data fall within the expected range, indicating that the sample could potentially be LSD.