Final answer:
Selecting new from the SALT File menu presents a dialogue box to specify speakers, the age of the target speaker, and the sampling context, all of which are crucial for setting up a language analysis. option 4 is correct.
Step-by-step explanation:
When you select new from the SALT File menu, you are presented with a dialogue box used to specify Option 4: All of the above, which includes the speakers in the transcript, the current age of the target speaker, and the sampling context. This dialogue box is a fundamental feature in SALT, a software tool used for analyzing language samples and transcripts. Being knowledgeable about the options provided allows users to accurately set up the parameters for their linguistic analysis.