The correct answer is C. form.
A form is a user interface element that allows users to enter data into a database. Forms are typically used to create new records or update existing records.
A query is a request for data from a database. Queries can be used to retrieve specific data, or to generate reports.
A filter is a way to restrict the data that is returned by a query. Filters can be used to select specific records, or to specify certain criteria that must be met for a record to be returned.
A report is a presentation of data from a database. Reports can be used to summarize data, or to highlight specific trends or patterns.