Read After Write Dependency(RAW): After a register has been written with some value, you have performed read after some time.
I1: LW $T1, 0($T0) //LOAD B #WE HAVE WRITTEN TO $T1#
I2: LW $T2, 4($T1) //LOAD C #WE HAVE WRITTEN TO $T2#
I3: ADD $T3, $T1, $T2; //ADD B AND C #WE ARE READING $T1 AND WE ARE READING $T2#
I4: SW $T3, 8($T0); //STORE A #WE HAVE TO READ $T3 BEFORE STORING AT THE LOCATION 8($T0) BECAUSE WE WANT CORRECT VALUE TO BE STORED NOT SOME GARBAGE OR PREVIOUS VALUE#
I5: LW $T4, 12($TO); //LOAD E #WE HAVE WRITTEN TO $T4#
I6: ADD $T5, $T3, $T4; //ADD A AND E #WE ARE READING $T3 AND WE ARE READING $T4#
I7: SW $T5, 16($T0); //STORE D #WE HAVE TO READ $T5 BEFORE STORING AT THE LOCATION 16($T0) BECAUSE WE WANT CORRECT VALUE TO BE STORED NOT SOME GARBAGE OR PREVIOUS VALUE#
On counting no of read operations here will be 6.
ANS: 6