If A equals left curly bracket 1 comma space left curly bracket 2 comma space 3 right curly bracket right curly bracketand B equals left curly bracket empty set comma space left curly bracket empty set right curly bracket comma space left curly bracket left curly bracket empty set right curly bracket right curly bracket right curly bracket, how many elements are in the cartesian product A cross times P left parenthesis B right parenthesis where P left parenthesis B right parenthesis is the power set of B?

Which of these is true of the cytoplasm of an unfertilized egg? a. it is an unevenly distributed mixture of mrna, proteins, organelles, and other substances. b. it does not contain substances that are important in directing development. c. these substances are supplied by the sperm. d. it does not contain substances that are important in directing development. e. development is directed solely by the surrounding cells. f. it is a homogeneous mixture of mrna, proteins, organelles, and other substances. g. it does not contain substances that are important in directing development. h. these substances are produced by the dna of the fertilized zygote.