As a part time employee, Derek earns $20,000 per year of employment income. He recently started up his own business as a sole proprietor. For the current year, his business revenues were $12,000 and his business expenses were $28,000. Derek has some investments that resulted in taxable dividend income of $1,400 and related interest expense of $2,000. Assuming this accounts for all of Derek's income, what is his non-capital loss for the year?

a. $600.

b. Nil.

c. $16,000.

d. $3,400.