Which of the Following Statements Is TRUE

Which of the following statements is TRUE?

A) The market supply of labor is always upward sloping, but an individual's labor supply may not be upward sloping throughout its entire range.
B) An individual's supply of labor is always upward sloping, but the market supply of labor may not be upward sloping throughout its entire range.
C) Both the market supply of labor and the individual's labor supply will both be upward sloping.
D) Both the market supply of labor and the individual's labor supply may not be upward sloping across their entire range.