An investment firm is interested in buying and selling cryptocurrencies on behalf of their customers. The number of available cryptocurrencies has expanded rapidly in the past few years, and they have many distinct features. The firm hires you to construct an ML algorithm that sorts the avaialble cryptocurrencies into groups of similar assets. Due to the rapid expansion of this asset class, we do not have prior grouping schemes to follow. What type of machine would you use?

A$.$

Classification model with supervised learning

B$.$

Clustering model with unsupervised learning

C$.$

Dimension reduction model with unsupervised learning

D$.$

Regression model with supervised learning