The one application which is not typically associated with Data Science in the options given:
D) Privacy Checker
Explanation:
Recommendation Systems (A) make intense use of data science for analyzing preferences in a user and thus proposing relevant content or product as well, such as those available in Netflix or Amazon.
Image & Speech Recognition (B) are massive domains under data science wherein various techniques from machine learning have been applied to learn visual as well as auditory patterns.
Online Price Comparison (C) uses the help of data science, such as market trend, customers' behavior, for its analysis in order to supply the users with the best price achievable from numerous sources.
Privacy Checker (D) is one which shall mainly be focused upon assessing and managing privacy settings as well as policies than that of data science techniques, to gain insight or to make predictions from big data.