Question

captchas prevent the use of what in creating electronic contracts?
○ encryption
○ phishing
○ data mining
○ robots or bots

Explanation:

CAPTCHAs are designed to distinguish human users from automated programs (robots or bots). Encryption is for securing data, phishing is a fraud method, and data mining is for extracting patterns. So CAPTCHAs prevent robots or bots from creating electronic contracts.

Answer:

robots or bots (the option with "robots or bots" text)