this is a multiple choice question

A consumer's preferences for ice cream has the following properties: the consumer prefers 1 litre of vanilla to the bundle consisting of1/2 litre of vanilla and 1/2 litre of chocolate; the consumer prefers 1 litre of chocolate to the bundle consisting of 1/2 litre of vanilla and 1/2 litre of chocolate; the consumer strictly prefers strawberry to vanilla; the consumer is indifferent between 1 litre of vanilla and 1 litre of chocolate. Which of the following statements are true? a) The consumer's preferences are not monotonic. b) The consumer's preferences do not satisfy transitivity. c) The consumer's preferences are incomplete. d) The consumer's preferences are not convex. e) The consumer's preferences cannot be represented with a utility function