How is gross income calculated?

(a) Gross income is the sum of all income a person recieves during the year, including wages, tips, profits from a business, interest or dividends from investments

(b) Gross income is calculated by subtracting a person's interest and dividends from investments from their wages.

(c) Gross income is calculated by finding the sum of a person's wages, tips and profits from a business and subtracting their interest and dividends from investments.

(d) Gross income is a person's wages for the year. This does not include tips, profits from a business, or interest and dividends from investments.