Machine Learning Problem:

Suppose that we want to use a machine learning method to predict the rent of a house in a city. The input to the model includes the size of the house, the built year, attached utilities, etc., and the model output is the monthly rent. a. Suppose that a supervised-learning model is to be used. Based on the above description, between a classification model and a regression model, which one is more suitable? b. Can the problem also be effectively solved by an unsupervised-learning algorithm