Directions: Choose the correct answer for the following question answer in a separate sheet of paper. 1. What is the cardinality of the empty set? b. 2 a. O c. 1 2. Which of the following is not a subset of set A={1,4,9,16 {} b.{1,2,3,4,5) c. (1,4,163 3. Which of the following is an infinite set? a. Empty set b. universal set c. the set of nat 4. If /n/ = 8, which integer/s can replace it n? b.8 a. -8 c. O​