Consider a group comprising of 4 students- A, B, C and D, who along with other students stand in a row. A and B stand in sixth and seventh positions, respectively from the left. C and D stand in the fourth and fifth positions, respectively from the right. When B and C exchange their positions, then B will be 15th from the left.
With reference to the information given above, which of the following statements are correct?
(A) D's position from the left is 16th.
(B) A's position from the right is 13th.
(C) C's position from the right is 12th, after exchange.
(D) If A and D also exchange their positions between themselves, then D's position from the left is 6th.
Choose the correct answer from the options given below: