Final answer:
The student incorrectly multiplied 305.74 by 100 to get a result of 305.7400. Option b, 13.05 × 100 = 13,500, is the most similar incorrect work.
Step-by-step explanation:
The student incorrectly multiplied 305.74 by 100 to get a result of 305.7400. The correct result should be 30574.
Similarly, in option b, the student incorrectly multiplied 13.05 by 100 to get a result of 13,500, which should be 1305.
Therefore, option b, 13.05 × 100 = 13,500, is the most similar incorrect work to the student's work.