Directions:
Each of the questions given below consists of a question followed by three statements. You have to study the question and the statements and decide which of the statement(s) is/are necessary to answer the question.

Question:
What is Arun's present age?
I. Five years ago, Arun's age was double that of his son's age at that time.
II. Present ages of Arun and his son are in the ratio of 11 : 6 respectively.
III. Five years hence, the respective ratio of Arun's age and his son's age will become 12 : 7.

Option A):
Only II and III
Option B):
Only I and II
Option C):
Only I and III
Option D):
Any two of the three

Correct Answer is Option D):
Any two of the three