Which among the following colours is obtained in Schiff test of aldehydes?

Identify the correct reagents for the given reaction sequence:

The major product formed in the following reaction is:

Compound '$A$' gives a positive test with $2,4-DNP$ and with $I_2/NaOH$. Compound '$A$' may be:

The reaction sequence is as follows:
$Cyclopentanecarboxamide$ $\xrightarrow{P_2O_5, \Delta} W$ $\xrightarrow{CH_3MgBr, H_3^+O} X$ $\xrightarrow{Ca(OH)_2, I_2 (\text{yellow ppt.})} Y$ $\xrightarrow{\Delta} Z$
$Z$ is:

The number of molecules which give the haloform test among the following molecules is $.......$.