what type of filtering utilizes an analysis of the content of spam messages in comparison to neutral / non-spam messages in order to make intelligent decisions as to what should be considered spam?
a) blacklist filteringb) whitelist filteringc) bayesian filteringd) extension filtering

Bayesian filtering

Explanation:

Bayesian filtering examines the header and the content of an incoming message via e mail and sorts out on the basis of spam content. In this way it is able to analysis the content of spam messages in comparison to neutral / non-spam messages and hence make intelligent decisions.

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