Write the $IUPAC$ name of the given compound.

The $IUPAC$ name (including the stereochemical notation for the chiral carbon) of the given structure is:

Which of the following compounds has a wrong $IUPAC$ name?

The $IUPAC$ name of acraldehyde is

According to the $IUPAC$ system,the compound shown in the image is named as:

Given below are two statements:
Statement $I$: $IUPAC$ name of Compound $A$ is $4-$chloro-$1, 3-$dinitrobenzene.
Statement $II$: $IUPAC$ name of Compound $B$ is $4-$ethyl-$2-$methylaniline.
In the light of the above statements,choose the most appropriate answer from the options given below: