His best bowling figure..
B
Correct answer
Explanation
This question asks about bowling figures in cricket, shown as wickets/runs (e.g., 1/13 means 1 wicket for 13 runs). Among the options, 1/13 represents the most economical bowling performance with 1 w conceded for just 13 runs. Bowling figures measure a bowler's effectiveness - lower runs per wicket is better.