Correct Answer: (c) Multimeter
Note: Logic: (1st number - 2nd number) = 17, (2nd number - 3rd number) = 11
(53, 36, 25) :- (53 - 36) = 17, (36 - 25) = 11
(71, 54, 43) :- (71 - 54) = 17, (54 - 43) = 11
Similarly,
(99, 82, 71) :- (99 - 82) = 17, (82 - 71) = 11