If a researcher would like to get in-depth information based on interviews and firsthand observations, she should use the methodological approach known as a(n)

he may come to make a decision if the car is at a reasonable price,is in good condition,and,is a type of car he is looking for.

the different factors that may end up influencing his decision is the owner of the car making deals with claude,and,how many more of these cars could he find for the right price.

hope this my dude and can i get brainliest : d