Dr. Doolittle finally finishes medical school and his internship and takes a job in the wilds of Alaska where he earns $70,000. He has no other income. Since there is no place for him to spend his earnings, he starts to pay down his student loans and pays $5,000 in interest in 2018. How much is Dr. Doolittle's deduction for education loan interest and where does he report it? 

a. $1,667 as a deduction for AGI 

b. $1,667 on Schedule A 

c. $3,333 as a deduction for AGI 

d. $2,500 as a deduction for AGI 

e. $5,000 on Schedule A 

f. $2,500 on Schedule A