To find the slope of the line you want to choose two of the pairs.
Slope Formula: (y² - y¹) / (x² - x¹)
I am going to pick (2, 8) and (4, 13).
13 = y²
8 = y¹
4 = x²
2 = x¹
13 - 8 = 5
4 - 2 = 2
So your answer is B) 5/2.
Hope this Helps and have a great day!!