Final answer:
Kya can let Tate know she is thinking of him during his difficult time of mourning by sending him a letter or message expressing her condolences and offering support, and by sending flowers or a thoughtful gift.
Step-by-step explanation:
Kya lets Tate know she is thinking of him during his difficult time of mourning by sending him a letter or a message. She may express her condolences and sympathies, offer words of support and encouragement, or simply let him know that she is there for him. Additionally, Kya may send flowers or a thoughtful gift to show her support and help him through his grief.