In the following passage some of the words have been left out. Read the passage carefully and select the correct answer for the given blank out of the four alternatives.

The ______________ of gurudakshina is very ancient and it is ________________ to the Indian culture and tradition. If you are absolutely ______________ about India, then it's advisable that you first try to understand the meaning of a guru and the ________________ of his presence in the lives of those around him. This, in turn, will help you to understand what guru dakshina is. In ancient India, a teacher or a guru was a spiritually _____________ guide.

The ______________ of gurudakshina is very ancient