The following is a reason why segmentation is a valuable strategy in email marketing:

You can send emails according to where your recipients are in the buyer's journey so that the content arrives exactly when the need it

Recipients are more likely to open and read segmented emails because the content is relevant and within context to them

All of the answers are reasons why segmenting emails is a valuable strategy

It allows you to send more relevant emails to portions of your list rather than your entire list.

Sending emails segmented by persona types lets you customize aspects such as tone making the emails more relatable