What is your favourite section in a supermarket?
My favourite sections is are* the perfumery, and fruit and vegetables, household cleaning prouducts and frozen
*Since you are listing more than one section, you should use the plural ;)
My favourite sections are the perfumery, the fruit and vegetables, the household cleaning prouducts and the frozen
My favourite [British English] / favorite [American English] sections are the perfumery, the fruit and vegetables section / department, the household cleaning products,and the frozen food (part).