The correct name for the compound given above is which of the following?

a$.1-$propyl$-3-$ethyl$-4-$methylbenzene

b$.4-$cyclopropyl$-2-$ethyl$-1-$methylbenzene

c$.$ para,ortho $-$ methyl, ethylcyclopropylbenzene

d$.1-$propyl$-3-$ethyl$-4-$methylcyclohexane

e$.5-$ol$-2-$ethylpentane ether