After a brief medical examination a healthy couple came to know that both of them are unable to produce functional gametes and should look for an' ART' (Assisted Re-productive Technique). Name the 'ART' and the procedure involved that you can suggest to them to help them bar a child.

(a) Where does fertilization occur in humans ? Explain the events that occur during this process. (b) A couple where both husband and wife are producing functional gametes, but the wife is still unable to conceive, is seeking medical aid. Describe any one method that you can suggest to this couple to become happy parents.