Qualitative is translated into non-numerical data. Quantitative information creates numerical data. Lest take a look at each option.
a. the car is silver in color; quantitative. Wrong: The correct term that can be used for this example is qualitative .
b. the car has foot pedals; qualitative . Wrong: From this information we can conclude that we are dealing with quantitative information.
c. the car has 4 doors; qualitative . Wrong: Again we are dealing with quantitative information. We can state this due to the fact that the information given is "4 doors."
d. the car has 1 steering wheel; quantitative. Correct: This is because there is 1 steering wheel, this is quantitative information.
I hope this helps you! :)