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Consider the sets A = {( x , y )   ×  : x 2 + y 2 = 25}, B = {( x , y )   ×  : x 2 + 9 y 2 = 144}, C = {( x , y )    ×  : x 2 + y 2 ≤ 4} and D = A ∩ B . The total number of one - one functions from the set D to the set C is :

1. 18290
2. 15120
3. 17160
4. 19320

Correct answer: 17160

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