A graph displays the top 10 occupations in the United States, in May 2020. It includes : Retail salesperson: 3,659,670 employed; Fast food workers: 3450,120 employed, cashiers: 333,100 employed, Home health aides 3,211,590 employed, Registered nurses: 2986,500 employed, Customer service: 2,833,250 employed, stock material handlers: 2,805,200 employed, office clerks: 2,788,090 employed, general managers: 2,347,420 employed, order fulfillers: 2,210,960 employed. a) "Occupation" is [select] variable? choose the correct answer from the options below: 1) discrete 2) Continuous 3) Ordinal 4) Nominal b) Cashiers" is a [ Select ] of the variable "Occupation