Select the correct answer.
 What is the justification for step 1 in the solution process?
 8x + 15 = 11x + 2
 Step 1: 8x = 11x − 13
 A. 
 the addition property of equality
 B. 
 the subtraction property of equality
 C. 
 the multiplication property of equality
 D. 
 the division property of equality