1. Which of the following is a well-defined set? A. The set of happy people. B. The set of good teachers. C. The set of enjoyable subjects. D. The set of Philippine Presidents. 2. Which of the following is an INFINITE set? A.{a,b,c,d,e) B. {2,4,6,8,...,800} C. (xlx is an integer between -60 and 60). D. {xlx is a whole number greater than 20 3. How many subsets will the set below have? T = {Monday, Tuesday, Wednesday, Thursday, Friday} A.5 B. 10 C. 32 D. 64 4. What do you call a set that contains no element? A. Subse B. Superset C. Universal Set D. Empty or Null Set 5. What is the cardinality of P= the set of English names for the months of the year? A4 B.8 C. 12 D. 24 6. What is the complement of U? A. U B.B C.{0} D.{1} 7. What is the meaning of the phrase "the intersection of Pand Q"? A. The set of elements in the universe that is not in P. B. The set of elements in the universe that is not in Q. C. The set of elements is common to both P and Q, D. The set of elements that is in Por Qor both P and Q. 8.If X = { Asia, Africa, North America, South America, Antarctica, Europe, Australia ), and Y = { Atlantic, Pacific, Arctic, Indian, Antarctic ), then which of the following could be the universal set? A. U = { oceans) B. U = { countries } C. U = { world ) D. U = {planets ) 9.What is the meaning of the phrase "the union of P and Q"? A. The set of elements in the universe that C. The set of elements is common is not in P. B. The set of elements in the universe that is not in Q. to both P and Q. D. The set of elements that is in Por Qor both P and Q. 10. Given P = { apple, orange, banana, mango } and Q = { orange, mango, watermelon), what is P U Q? A. PU Q = 2 B. PU Q = { apple, orange, banana} C.PUQ= { apple, orange, banana, mango } D.PU Q = {apple, orange, banana, mango, watermelon }​