Sentence (Column 1), Answer (Column 2), 1. Biometric systems still face ________ regarding privacy and accuracy. (CHALLENGE), challenges, 2. Minor improvements can ________ reshape the user experience. (SIGNIFICANT), significantly, 3. Users are becoming more ________ of how their data footprint is used. (AWARE), aware, 4. Companies must balance convenience with ________. (SECURE), security, 5. People increasingly want greater digital ________ over their information. (OWN), ownership.

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