One Might Explain a Shift to the Right in the Demand

One might explain a shift to the right in the demand curve for normal product A by saying that:

A) incomes have declined, and consumers now want to buy less of A at every price
B) the price of A has increased and, as a result, consumers want to buy less of it
C) preferences have changed in favour of A, so consumers now want to buy more at every price
D) the price of A has declined and, as a result, consumers want to buy more of it
E) product A is now more plentiful than before