There is no print option from the the Mark unread/mark read box. It is gone.
Shirley Smallwood shared this idea
Dennie Fitzgerald commented
I am not from Yahoo, but if you are using a computer or laptop, look for a button "prnit screen" or "prt sc" then hit Ctrl+P to print, or try ctrl+P. You may have to highlight the section you want to print before trying these options. Just play around with it to see what works, as some e-mails may re-act different.
If you are using a cell phone or table, well, I haven't figured that out yet.