A developer builds an online survey that requires all questions to have an answer. Which of the following inconsistencies does this setting prevent?

When all questions are required to have an answer, the survey system enforces that no data points are left blank for those specific fields, directly preventing the occurrence of missing values in the collected dataset. This ensures that every entry for those questions has a recorded response.

This setting prevents missing values, not duplication; duplication typically refers to entire identical records or specific data entries appearing multiple times when they shouldn't.

Data corruption refers to errors in data storage or transmission that alter the data, which is not directly prevented by requiring an answer.

While requiring answers contributes to data completeness, 'completeness' itself is a data quality dimension, not an inconsistency.