Match the following statements with the appropriate data mining technique:

"This patient has a really good chance of recovery. Look how close the test results are to all these prior cases!"

"When we consider all the data in this tax return, it is evident that this is a case that needs auditing."

"Based on this output, I will target the top 4,000 prospects in the next campaign."

"Interesting! I can clearly see the three distinct groups."

1. Ranking

2. Classification

3. K-nearest neighbors

4. k-means clustering