Answer: 1 dependent
Step-by-step explanation:
Only Dale can be claimed as a dependent as he is a qualifying child who is under 24 and is a full time student.
Kim cannot be claimed as a dependent as Kim is above the age of 19. To be a qualifying child for dependency, Kim would have to be less than 19 or less than 24 were Kim a full time student.
Grant also does not qualify as a dependent under the Qualifying relative designation as Grant's gross income of $5,000 exceeds the limit of $4,200 that Grant would have to be making less than in 2019 to be claimed as a qualifying relative.