The IUPAC name of the following compound is
`{:((CH_(3))_(2)CH-CH_(2)CH=CH-CH=CH-CHCH_(3)),(" |"),(" "C_(2)H_(5)):}`
A. 1,1,7,7-tetramethyl-2,5-octadiene
B. 2,8-dimethyl-3, 6-decadiene
C. 1,5-di-iso-propyl-1, 4-hexadiene
D. 2,8-dimethyl-4,6-decadiene