Answer:
The correct option is C) 210.
Step-by-step explanation:
Consider the provided information.
The analyst has narrowed down the list of potential stocks to 7. She choose and rank her top 3 picks.
Since the order matter so we will use permutation.
The formula for permutation is: [tex]^{n}P_{r}=\frac{n!}{(n-r)!}[/tex]
Substitute n=7 and r=3 in above formula.
[tex]^{7}P_{3}=\frac{7!}{(7-3)!}[/tex]
[tex]^{7}P_{3}=\frac{7!}{4!}[/tex]
[tex]^{7}P_{3}=210[/tex]
Hence, the correct option is C) 210.