Correct option is A
Logic first number = square root of second number × third number
(80,16,20)
80 = square root of 16 × 20
80 = 4× 20
80 = 80,
(144,36,24)
144 = square root of 36 × 24
144 = 6 × 24
144 = 144
similarly, (189,49,27)
189 = square root of 49 ×27
189 = 7 ×27
189 = 189
hence, option a is correct.