Ms. Hall found a mistake as she was grading Ethan’s paper. Each step should represent an equivalent expression. Which step shows the mistake that Ms. Hall found?

Expression: (1/2)exponet 2 x 8 – 3

Step 1:1/4 x 8 – 3


Step 2: 1/4 x 5

Step 3: 5/4

Step 4: 1/4