C-02-Q071mediumsingle_mcq∣A∣=3|A| = 3∣A∣=3, ∣B∣=4|B| = 4∣B∣=4, ∣A∩B∣=2|A \cap B| = 2∣A∩B∣=2 হলে ∣A∪B∣=?|A \cup B| = ?∣A∪B∣=?a555b666c777d99