Subject: mathqa
Question: on a ranch , a rancher can place a loop of rope , called a lasso , once in every 3 throws around a cow ’ s neck . what is the probability that the rancher will be able to place a lasso around a cow ’ s neck at least once in 3 attempts ?
Option: 
A: 19 / 27
B: 23 / 27
C: 1 / 3
D: 5 / 9
Answer: A