False. a placeholder can hold everything
Experiments. ...
Surveys. ...
Questionnaires. ...
Interviews. ...
Case studies. ...
Participant and non-participant observation. ...
Observational trials. ...
Studies using the Delphi method.
The correct answer is known as a "query".
When you ask a lot of complex questions , which uses comparison operators, that is called a query. A query refers to the <span>exact request for </span>data retrieval<span> with the use of database and information systems. </span>