The following questions refer to this code snippet: # Instruction 1 LDUR X1, (X6, #40] 2 ADD X2, X3, X1 3 ADD X1, X6, X4 4 STUR X2, [X4, #20] AND X1, X1, X2 Question 16 0/ 5 pts Given a pipelined processor without any forwarding, NOP instructions must be inserted between instructions to ensure proper execution. For the code snippet above, how many NOP instructions must be inserted between 11 and 12