Find the Odd One:
A. Answer: (3) Sonata.
sonata is an instrumental composition for piano or any other instrument but rest are the musical instrument.
Hence, the answer is (3) Sonata.
B. Answer: (2) Steamer
Steamer is a cooking utensil but rest are the noun.
Hence, the answer is (2) Steamer.
C. Answer: (2) UNHIDE
Unhide is a meaningless word but rest are the meaningful words.
Hence, the answer is (2) UNHIDE.