which of the following is the correct expanded form for the series below?

Answer:
Step-by-step explanation:
This is the sum of the first 4 terms, substitute n for each term:
4
∑ [tex]\frac{7}{n}[/tex] = 7/1 + 7/2 + 7/3 + 7/4
n=1
Correct choice is A
[tex] \displaystyle \sum^{4} _{n = 1} \: \frac{7}{n} = \: 7 + \frac{7}{2} + \frac{7}{3} + \frac{7}{4} [/tex]