how to add ranking questions in google forms?

[Kamalpreet Kaur]

dear sir,

kindly guide me how should I add rank questions in google forms? my question is :

to rank the different mobile websites / apps in order of  preference for purchasing different product categories by assigning 1 to the most preferred and 8 to least preferred:

products                flipkart              amazon           snapdeal          ebay    etc.

apparel

footwear

electronics

etc..