C-01-Q091mediumsingle_mcqU={x:1≤x≤20, x∈Z}U = \{x : 1 \leq x \leq 20,\ x \in \mathbb{Z}\}U={x:1≤x≤20, x∈Z}, A={x:xA = \{x : xA={x:x বিজোড়}\}}, B={x:xB = \{x : xB={x:x মৌলিক}\}} হলে A∪B=?A \cup B = ?A∪B=?a{1,3,5,7,9,11,13,15,17,19}\{1, 3, 5, 7, 9, 11, 13, 15, 17, 19\}{1,3,5,7,9,11,13,15,17,19}b{2,3,5,7,11,13,17,19}\{2, 3, 5, 7, 11, 13, 17, 19\}{2,3,5,7,11,13,17,19}c{1,2,3,5,7,9,11,13,15,17,19}\{1, 2, 3, 5, 7, 9, 11, 13, 15, 17, 19\}{1,2,3,5,7,9,11,13,15,17,19}d{1,3,5,7,11,13,17,19}\{1, 3, 5, 7, 11, 13, 17, 19\}{1,3,5,7,11,13,17,19}