Final answer:
The psychological tool that Babette employs to focus on relevant information out of the 2,500 messages she is exposed to daily is selective attention.
Step-by-step explanation:
The psychological tool that Babette employs to focus on relevant information out of the 2,500 messages she is exposed to daily is selective attention. Selective attention is the ability to filter out irrelevant stimuli and focus only on the information that is deemed important or relevant.
For example, when Babette is studying for an exam, she may choose to ignore social media notifications and other distractions in order to concentrate on her textbooks and class notes.
Selective attention allows individuals to allocate their cognitive resources effectively, ensuring that their focus is directed towards relevant information.