A two-digit number is formed using the digits 2, 5,6,7,3 where a digit may be repeated. Let us define the events A and B as follows: i) A= (both digits are odd), B= (the number formed is a multiple of 5), C=(the number formed is even) and D= (the number formed has the same digits) ii) Discuss the dependence or otherwise of A, B, C, D