Which of the Following Statements Is FALSE

Which of the following statements is FALSE?

A) Almost all of the correlations between shares are negative, illustrating the general tendency of shares to move together.
B) With a positive amount invested in each share, the more the shares move together and the higher their covariance or correlation, the more variable the portfolio will be.
C) Shares' returns will tend to move together if they are affected similarly by economic events.
D) Shares in the same industry tend to have more highly correlated returns than shares in different industries.