Which one of the following statements about the search command is true?

Which one of the following statements about the search command is true?

A. It does not allow the use of wildcards.
B. It treats field values in a case-sensitive manner.

C. It can only be used at the beginning of the search pipeline.

D. It behaves exactly like search strings before the first pipe.

Reference: https://docs.splunk.com/Documentation/SplunkCloud/8.0.2003/Search/Usethesearchcommand