Choose the correct option after observing the given graph and the code snippet carefully. impulse(1,[1 _], ‘red’);hold on;impulse(1,[1 a], ‘blue’);impulse(1,[1 b], ‘yellow’);impulse(1,[1 _], ‘green’);

• A. a<b
• B. a>b
• C. a=b
• D. Cannot be determined