From the list of statements below, check all that are CORRECT. "Suppose U(.) is a utility function that represents the preferences of a consumer. Then .." O V(.) = 10U(.) will also represent the consumer's preferences. DU(.) is the unique utility function for the consumer. O V(.) = U(-) + 100 will also represent the consumer's preferences. V(.) = 20 (.) will represent the preferences of a consumer who likes all bundles twice as much as this consumer