An expression shown below has been compiled into MIPS assembly language and the code is shown below 1. a b c+d +ef (a is in $t1, b is in $12, c is in $t3, d is in St4, e is in St5, and f is in St6) add add add add add $s0, $t1, $t2 $s1, $t3, $t4 $S2, $t5, $t6 $t0, $s0, $s1 $to, St0, $s2 What type or types of hazards are contained in this code? Give an indication of where the hazard is. How can we modify the system or the code to avoid this hazard