Can my mother in-law claim the caregiver amount for her deceased husband?

My mother in-law provided care for her husband from January to June last year until he passed. Can she claim the caregiver amount on her 2019 taxes. In the software there is no option to select the caregiver amount when we input her husbands tax information. I'm not sure if the caregiver amount option is turned off as her status is now "widowed" or for some other reason. Any help would be appreciated.