"In an experimental setup, a compound 'N' with a molecular formula C6H12O2 is subjected to various chemical reactions. Initially, 'N' forms a white precipitate with AgNO3 in an ammoniacal solution, indicating the presence of an aldehyde group. However, when treated with Brady's reagent, no color change is observed, suggesting 'N' is not a typical ketone. Upon reaction with NaOH, 'N' forms a compound 'O' with the formula C6H11O2Na, which upon acidification regenerates 'N'. Additionally, when 'N' undergoes ozonolysis followed by reductive workup, it yields formaldehyde (HCHO) and a C4 compound with a ketone group. Based on these observations, what is the most probable structure of compound 'N'?" A. Ethyl butyrate B. 2-Ethylhexanal C. 4-Oxopentanal D. 3-Hydroxybutanal