On which basis should this binary classification model be built?

A company needs a churn prevention model to predict which customers will NOT review their yearly subscription to the company’s service. The company plans to provide these customers with a promotional offer. A binary classification model that uses Amazon Machine Learning is required.

On which basis should this binary classification model be built?
A . User profiles (age, gender, income, occupation)
B . Last user session
C . Each user time series events in the past 3 months
D . Quarterly results

Answer: C