Such things happened in the lives of many people. Even to find the source of which many people put forward different opinions. But i am limited to the following two issues.
1. By her luck
2. By her hard working
Jealous and lazy people will say #1 because if they think that pretending doing such things comes from the ease of luck, it gives them solace in their bubble of mediocrity. Truth is that these types of people never acknowledge the foresight, preparation, and hard work that goes into a successful end result, they merely criticize the end result as not being up to their standards in one way or another.