According to `IUPAC` , what is the systematic name of the compound shown below?
A. `2,5,6-`triethyl`01,3,4-`trimethylcyclohexane
B. `1,2,5-`triethyl`-3,4,6-`trimethyl cyclohexane
C. `1,3,4-`triethyl`-2,5,6-`trimethyl cyclohexane
D. `1,2,4-`triethyl`-3,5,6-`trimethyl cyclohexane