Find the Error A student simplified the expression 5x−3(x+4) to 2x+12 . Choose the correct answer and explanation. Multiple choice question. cross out A) The student did not multiply −3 by x. 5x−3(x+4)=2x+4 cross out B) The student did not multiply 5x by 4. 5x−3(x+4)=17x cross out C) The student multiplied 4 by 3 instead of −3 . 5x−3(x+4)=2x−12 cross out D) The student did not add 4 to −3 . 5x−3(x+4)=6x+1