Given below are the four isomeric compounds (P, Q, R, S) Identify...

Given below are the four isomeric compounds $(\mathrm{P}, \mathrm{Q}, \mathrm{R}, \mathrm{S})$

Identify correct statements from below.
A. $\mathrm{Q}, \mathrm{R}$ and S will give precipitate with $2,4-\mathrm{DNP}$.
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 $\mathrm{I}_{2} / \mathrm{NaOH}$.
E. Q alone will deposit silver with Tollen's reagent Choose the correct option.