Consider the procedure used below to solve the given equation.

Given: 5(2x−5)+2x+8=43

Step 1: 10x−25+2x+8=43

Step 2: 12x−17=43

Step 3: 12x=43+17

Step 4: 12x=60

Step 5: x=5

Which statement about the solution of the given equation is true?
A
The first mistake was made in Step 1.
B
The first mistake was made in Step 2.
C
The first mistake was made in Step 3.
D
Each step is correct.