Which of the following focuses on the discovery of (previously) unknown properties on the data? A) Data mining B) Big Data C) Data wrangling D) Machine Learning Related MCQs: Memory management technique in which the system stores and retrieves data from secondary storage for use in main memory is called? Which forms have a relation that possesses data about an individual entity? Materials for rain proof coats and tents owe their water proof properties to? The scales where the absolute zero is unknown are termed as?