Identify the Elementary Row Operation Being Performed to Obtain the New

Multiple Choice

Identify the elementary row operation being performed to obtain the new rowequivalent matrix.

A) Add 5 times $R _ { 1 }$ to $R _ { 2 }$ .
B) Add $- 5$ times $R _ { 2 }$ to $R _ { 1 }$ .
C) Add $- 5$ times $R _ { 1 }$ to $R _ { 2 }$ .
D) Add 5 times $R _ { 1 }$ to $R _ { 1 }$ .
E) Add 5 times $R _ { 2 }$ to $R _ { 1 }$ .