Which of the following statements is FALSE?

A) Without trading, the portfolio weights will decrease for the stocks in the portfolio whose returns are above the overall portfolio return.

B) The expected return of a portfolio is simply the weighted average of the expected returns of the investments within the portfolio.

C) Portfolio weights add up to 1 so that they represent the way we have divided our money between the different individual investments in the portfolio.

D) A portfolio weight is the fraction of the total investment in the portfolio held in an individual investment in the portfolio.