Grace (64) is claimed as a dependent on her son, Clark's tax return. Her unearned income from Idaho was $1,405. Which of the following statements is correct regarding whether Grace is required to file an Idaho tax return?\ Grace is not required to file because her Idaho unearned income is less than $2,550.\ Grace is required to file because her Idaho unearned income is above $1,150.\ Grace is required to file because she received income from Idaho sources.\ Grace is not required to file because her Idaho unearned income is less than the gross income amount for her filing status.