A compound having straight chain of five carbon atoms has one ketone group and two methyl group on different-defferent carbon atoms. The `IUPAC` name of the compound is:
A. `2,4`-Dimethyl-`3`-oxopentane
B. `2,4`-Dimethylpentan-`3`-one
C. `3,4`-Dimethyl-`2`-oxopentane
D. `3,3`-Dimethylpentan-`2`-one
