Which of the following statement is true about k-NN algorithm?1) k-NN performs much better if all of the data have the same scale2) k-NN works well with a small number of input variables (p), but struggles when the number of inputs is very large3) k-NN makes no assumptions about the functional form of the problem being solved

Which of the following statement is true about k-NN algorithm?1) k-NN

1.	Which of the following statement is true about k-NN algorithm?1) k-NN performs much better if all of the data have the same scale2) k-NN works well with a small number of input variables (p), but struggles when the number of inputs is very large3) k-NN makes no assumptions about the functional form of the problem being solved
A.	1 and 2
B.	1 and 3
C.	only 1
D.	1,2 and 3
Answer» E.