I'm not sure how to go about solving this question.

The manager of the customer service division of a consumer electronics company is interested in determining whether the customers who have purchased the washing machine made by the company over the past 18 months are satisfied with their product. The survey asked a series of questions including the following: 1) What is your gender? 2) How many people are there in your household? 3) What is your annual income rounded to the nearest thousands? 4) How would you rate the quality of your purchase experience with excellent, good, decent, poor, or terrible? A random sample of 70 customers' responses is collected.

A) Identify how many cases are collected

B) Identify whether the responses to the second survey question of the number of people in the household are values from a numerical or categorial variable