1099-B

Filing 2019 taxes for my girlfriend who is a widow. Her husband passed 06/25/2020. 

In 2019 Husband sold stock options through Computershare (who are less than helpful) on the 1099-B separates the sale on 14 May 2019 into three line items. One being a short term sale and one being a long term sale of which have the cost basis. Obviously the third line item has no information in 1b, 1e!! To top it off my friend has NO paperwork anywhere. Her home was robbed while her husband was in the hospital dying. 

My questions is her only option LONG TERM SALES WITH COST BASIS NOT REPORTED TO THE IRS?? 

 

Respectfully, Joelle