Respuesta :

Answer: "A"

somewhat of a trick question

use pascals triangle (or binomial expansion)

0-1

1-1,1

21,2,1

3- 1,3,3,1

4- 1,4,6,4,1

5- 1,5,10,10,5,1

NOTICE THAT "A" has the 1,5,10,10,5,1  in the 5th row

Step-by-step explanation:

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