The range of the function \[f(x){{=}^{7-x}}{{P}_{x-3}}\] is

1.	The range of the function \[f(x){{=}^{7-x}}{{P}_{x-3}}\] is
A.	\[\{1,2,3\}\]
B.	\[\{1,2,3,4,5,6\}\]
C.	\[\{1,2,3,4\}\]
D.	\[\{1,2,3,4,5\}\]
Answer» B. \[\{1,2,3,4,5,6\}\]

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The range of the function \[f(x){{=}^{7-x}}{{P}_{x-3}}\] is

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