The Source Attribution Rule requires that the speaker give the audience enough information to enable it to locate that source if its members wish to do so$.$ It also requires the speaker to cite the source's credentials and to avoid including unnecessary source details. Since the Source Attribution Rule focuses on personal identification and qualification of a given source, which of the following statements best expresses the spirit of this rule for public speakers as they prepare a speech?

Public speakers are obligated while speaking only to credit their sources by name.

Public speakers are obligated while speaking to credit their sources by name and the date and location of the information's publication or statement.

Public speakers are obligated while speaking to credit their sources by name and encouraged to cite their credentials.

Public speakers are not obligated to credit their speech's sources of supportive information.