She got a lucrative job of a translator because she was ______ in French.
Right Answer is: B
Let’s understand the meaning of the given words:
Efficient(कुशल) means working in a well-organized and competent way.
Proficient(कुशल) means competent or skilled in doing or using something.
Sufficient(पर्याप्त) means enough.
Deficient(कम) means not having enough of a specified quality or ingredient.
The sentence suggests that the subject got a high-paying job. This will happen only if the person is skilled in French. So, the word “proficient” is the correct word for the blank.