Aldehydes, Ketones and Carboxylic Acids Part 3

Given below are the four isomeric compounds (P,Q,R,S)Identify correct statements from below.
A. Q,R and S will give precipitate with 2, 4-DNP.
B. P and Q will give positive Bayer's test.
C. Q and R will give sooty flame.
D. R and S will give yellow precipitate with I2∕NaOH.
E. Q alone will deposit silver with Tollen's reagent Choose the correct option.