Which of the following sentences are correct with respect to Guidance ?

(i) It is assistance made by competent counsellors to an individual of any age to help him direct his own life.

(ii) It is not systematic professional process of helping the individual through education and interpretative procedures to gain a better understanding.

(iii) It helps every individual to recognize and use his inner resources.

(iv) It is necessarily required from childhood to old age. 

Select the correct answer from the options given below.