Predictive Search in Google's Search Engine

Multiple Choice

Predictive search in Google's search engine:

A) maintains a history of your searches and then predicts what you will search on next.
B) uses a tracking service and cookies on your browser to predict search results.
C) uses a knowledge graph of what similar people searched on to predict your search interests.
D) uses a semantic approach to predict what you are looking for.
E) predicts what you are looking for as you enter words into the query box.