To make a pie chart, you'd need to know what the data is out of (i.e. the total number of cars, in this case).
So you'd add up how many red, black, blue, white, and other coloured cars there are and that would give you the total, which is:
85 + 104 + 35 + 88 + 48 = 360 cars
Now you just need to work out how many cars (of the 360 in total) are white:
There are 88 white cars, so you'd do 88 divided by 360. Then, you'd have to multiply by 100 to give you a percentage.
(88 ÷ 360) × 100 ≈ 24.44%
Therefore, the correct answer would be A. 24%, as this is 24.44% to the nearest percent.