Consider the following instructions.
I 1 : R 1 = 100
I 2 : R 1 = R 2 + R 4
I 3 : R 2 = R 4 + 25
I 4 : R 4 = R 1 + R 3
I 5 : R 1 = R 1 + 30
Calculate sum of (WAR, RAW and WAW) dependencies the above instructions.
(a) 10
(c) 6
(b) 12
(d) 8