Which of the following is an aldehyde?Η Η ΗA. H-C-C-C-CIIIΗ Η ΗΗ Η ΗB. H-C-C-C-CIIΗΗΗ ΗΗΗ ΗIIC. H-C-C-C-C,IIIΗ Η ΗCH3Η Η Η|||D. H-C-C-C-CΤ.. ΌΞΗΗ Η ΗO=O-CH3

Explanation:
An aldehyde is characterized by one carbon at either end bonded to an oxygen atom and a hydrogen atom.
Answer:
The answer is B.